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Finding the Fourth Proportional to 69,988.66, 96,585.69 and 38,158.90

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Solution

The fourth proportional to 69,988.66, 96,585.69 and 38,158.90 is: 52,660.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,988.66 : 96,585.69 = 38,158.90 : x
  2. Step 2: Convert to fraction form
    69,988.66/96,585.69 = 38,158.90/x
  3. Step 3: Cross multiply
    69,988.66x = 96,585.69 × 38,158.90
  4. Step 4: Simplify right side
    69,988.66x = 3,685,603,686.14
  5. Step 5: Solve for x
    x = 3,685,603,686.14/69,988.66
  6. Step 6: Final answer
    x = 52,660.01

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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.