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Finding the Fourth Proportional to 64,348.42, 96,487.55 and 19,363.20

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Solution

The fourth proportional to 64,348.42, 96,487.55 and 19,363.20 is: 29,034.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,348.42 : 96,487.55 = 19,363.20 : x
  2. Step 2: Convert to fraction form
    64,348.42/96,487.55 = 19,363.20/x
  3. Step 3: Cross multiply
    64,348.42x = 96,487.55 × 19,363.20
  4. Step 4: Simplify right side
    64,348.42x = 1,868,307,148.91
  5. Step 5: Solve for x
    x = 1,868,307,148.91/64,348.42
  6. Step 6: Final answer
    x = 29,034.24

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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.