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Finding the Fourth Proportional to 71,305.98, 98,403.03 and 39,475.41

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Solution

The fourth proportional to 71,305.98, 98,403.03 and 39,475.41 is: 54,476.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,305.98 : 98,403.03 = 39,475.41 : x
  2. Step 2: Convert to fraction form
    71,305.98/98,403.03 = 39,475.41/x
  3. Step 3: Cross multiply
    71,305.98x = 98,403.03 × 39,475.41
  4. Step 4: Simplify right side
    71,305.98x = 3,884,499,954.49
  5. Step 5: Solve for x
    x = 3,884,499,954.49/71,305.98
  6. Step 6: Final answer
    x = 54,476.50

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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.