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Finding the Fourth Proportional to 71,663.04, 98,894.42 and 38,957.25

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Solution

The fourth proportional to 71,663.04, 98,894.42 and 38,957.25 is: 53,760.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,663.04 : 98,894.42 = 38,957.25 : x
  2. Step 2: Convert to fraction form
    71,663.04/98,894.42 = 38,957.25/x
  3. Step 3: Cross multiply
    71,663.04x = 98,894.42 × 38,957.25
  4. Step 4: Simplify right side
    71,663.04x = 3,852,653,954.29
  5. Step 5: Solve for x
    x = 3,852,653,954.29/71,663.04
  6. Step 6: Final answer
    x = 53,760.68

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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.