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Finding the Fourth Proportional to 63,715.50, 87,929.82 and 35,423.28

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Solution

The fourth proportional to 63,715.50, 87,929.82 and 35,423.28 is: 48,885.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,715.50 : 87,929.82 = 35,423.28 : x
  2. Step 2: Convert to fraction form
    63,715.50/87,929.82 = 35,423.28/x
  3. Step 3: Cross multiply
    63,715.50x = 87,929.82 × 35,423.28
  4. Step 4: Simplify right side
    63,715.50x = 3,114,762,634.21
  5. Step 5: Solve for x
    x = 3,114,762,634.21/63,715.50
  6. Step 6: Final answer
    x = 48,885.48

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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.