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Finding the Fourth Proportional to 9,553.12, 13,179.68 and 7,041.22

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Solution

The fourth proportional to 9,553.12, 13,179.68 and 7,041.22 is: 9,714.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,553.12 : 13,179.68 = 7,041.22 : x
  2. Step 2: Convert to fraction form
    9,553.12/13,179.68 = 7,041.22/x
  3. Step 3: Cross multiply
    9,553.12x = 13,179.68 × 7,041.22
  4. Step 4: Simplify right side
    9,553.12x = 92,801,026.41
  5. Step 5: Solve for x
    x = 92,801,026.41/9,553.12
  6. Step 6: Final answer
    x = 9,714.21

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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.