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Finding the Fourth Proportional to 63,700.74, 87,908.74 and 35,021.61

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Solution

The fourth proportional to 63,700.74, 87,908.74 and 35,021.61 is: 48,330.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,700.74 : 87,908.74 = 35,021.61 : x
  2. Step 2: Convert to fraction form
    63,700.74/87,908.74 = 35,021.61/x
  3. Step 3: Cross multiply
    63,700.74x = 87,908.74 × 35,021.61
  4. Step 4: Simplify right side
    63,700.74x = 3,078,705,432.76
  5. Step 5: Solve for x
    x = 3,078,705,432.76/63,700.74
  6. Step 6: Final answer
    x = 48,330.76

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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.