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Finding the Fourth Proportional to 61,308.33, 91,962.80 and 18,614.13

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Solution

The fourth proportional to 61,308.33, 91,962.80 and 18,614.13 is: 27,921.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,308.33 : 91,962.80 = 18,614.13 : x
  2. Step 2: Convert to fraction form
    61,308.33/91,962.80 = 18,614.13/x
  3. Step 3: Cross multiply
    61,308.33x = 91,962.80 × 18,614.13
  4. Step 4: Simplify right side
    61,308.33x = 1,711,807,421.29
  5. Step 5: Solve for x
    x = 1,711,807,421.29/61,308.33
  6. Step 6: Final answer
    x = 27,921.29

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.