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Finding the Fourth Proportional to 42,173.84, 63,260.76 and 11,009.12

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Solution

The fourth proportional to 42,173.84, 63,260.76 and 11,009.12 is: 16,513.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,173.84 : 63,260.76 = 11,009.12 : x
  2. Step 2: Convert to fraction form
    42,173.84/63,260.76 = 11,009.12/x
  3. Step 3: Cross multiply
    42,173.84x = 63,260.76 × 11,009.12
  4. Step 4: Simplify right side
    42,173.84x = 696,445,298.13
  5. Step 5: Solve for x
    x = 696,445,298.13/42,173.84
  6. Step 6: Final answer
    x = 16,513.68

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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 (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.