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Finding the Fourth Proportional to 70,801.71, 97,702.65 and 38,964.53

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Solution

The fourth proportional to 70,801.71, 97,702.65 and 38,964.53 is: 53,769.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,801.71 : 97,702.65 = 38,964.53 : x
  2. Step 2: Convert to fraction form
    70,801.71/97,702.65 = 38,964.53/x
  3. Step 3: Cross multiply
    70,801.71x = 97,702.65 × 38,964.53
  4. Step 4: Simplify right side
    70,801.71x = 3,806,937,348.49
  5. Step 5: Solve for x
    x = 3,806,937,348.49/70,801.71
  6. Step 6: Final answer
    x = 53,769.00

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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.