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Finding the Fourth Proportional to 63,811.86, 95,722.65 and 19,442.40

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Solution

The fourth proportional to 63,811.86, 95,722.65 and 19,442.40 is: 29,165.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,811.86 : 95,722.65 = 19,442.40 : x
  2. Step 2: Convert to fraction form
    63,811.86/95,722.65 = 19,442.40/x
  3. Step 3: Cross multiply
    63,811.86x = 95,722.65 × 19,442.40
  4. Step 4: Simplify right side
    63,811.86x = 1,861,078,050.36
  5. Step 5: Solve for x
    x = 1,861,078,050.36/63,811.86
  6. Step 6: Final answer
    x = 29,165.08

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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.