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Finding the Fourth Proportional to 71,402.52, 98,533.98 and 39,571.14

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Solution

The fourth proportional to 71,402.52, 98,533.98 and 39,571.14 is: 54,607.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,402.52 : 98,533.98 = 39,571.14 : x
  2. Step 2: Convert to fraction form
    71,402.52/98,533.98 = 39,571.14/x
  3. Step 3: Cross multiply
    71,402.52x = 98,533.98 × 39,571.14
  4. Step 4: Simplify right side
    71,402.52x = 3,899,101,917.34
  5. Step 5: Solve for x
    x = 3,899,101,917.34/71,402.52
  6. Step 6: Final answer
    x = 54,607.34

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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.