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Finding the Fourth Proportional to 71,362.46, 98,486.19 and 39,534.32

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Solution

The fourth proportional to 71,362.46, 98,486.19 and 39,534.32 is: 54,560.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,362.46 : 98,486.19 = 39,534.32 : x
  2. Step 2: Convert to fraction form
    71,362.46/98,486.19 = 39,534.32/x
  3. Step 3: Cross multiply
    71,362.46x = 98,486.19 × 39,534.32
  4. Step 4: Simplify right side
    71,362.46x = 3,893,584,304.83
  5. Step 5: Solve for x
    x = 3,893,584,304.83/71,362.46
  6. Step 6: Final answer
    x = 54,560.68

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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.