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Finding the Fourth Proportional to 70,678.78, 97,537.46 and 38,413.39

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Solution

The fourth proportional to 70,678.78, 97,537.46 and 38,413.39 is: 53,010.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,678.78 : 97,537.46 = 38,413.39 : x
  2. Step 2: Convert to fraction form
    70,678.78/97,537.46 = 38,413.39/x
  3. Step 3: Cross multiply
    70,678.78x = 97,537.46 × 38,413.39
  4. Step 4: Simplify right side
    70,678.78x = 3,746,744,490.59
  5. Step 5: Solve for x
    x = 3,746,744,490.59/70,678.78
  6. Step 6: Final answer
    x = 53,010.88

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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.