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Finding the Fourth Proportional to 11,573.84, 15,998.14 and 10,655.28

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Solution

The fourth proportional to 11,573.84, 15,998.14 and 10,655.28 is: 14,728.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,573.84 : 15,998.14 = 10,655.28 : x
  2. Step 2: Convert to fraction form
    11,573.84/15,998.14 = 10,655.28/x
  3. Step 3: Cross multiply
    11,573.84x = 15,998.14 × 10,655.28
  4. Step 4: Simplify right side
    11,573.84x = 170,464,661.18
  5. Step 5: Solve for x
    x = 170,464,661.18/11,573.84
  6. Step 6: Final answer
    x = 14,728.44

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Half scale
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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.