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Finding the Fourth Proportional to 70,754.54, 97,641.54 and 38,489.16

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Solution

The fourth proportional to 70,754.54, 97,641.54 and 38,489.16 is: 53,115.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,754.54 : 97,641.54 = 38,489.16 : x
  2. Step 2: Convert to fraction form
    70,754.54/97,641.54 = 38,489.16/x
  3. Step 3: Cross multiply
    70,754.54x = 97,641.54 × 38,489.16
  4. Step 4: Simplify right side
    70,754.54x = 3,758,140,855.71
  5. Step 5: Solve for x
    x = 3,758,140,855.71/70,754.54
  6. Step 6: Final answer
    x = 53,115.19

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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.