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Finding the Fourth Proportional to 32,487.66, 48,711.69 and 12,775.50

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Solution

The fourth proportional to 32,487.66, 48,711.69 and 12,775.50 is: 19,155.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,487.66 : 48,711.69 = 12,775.50 : x
  2. Step 2: Convert to fraction form
    32,487.66/48,711.69 = 12,775.50/x
  3. Step 3: Cross multiply
    32,487.66x = 48,711.69 × 12,775.50
  4. Step 4: Simplify right side
    32,487.66x = 622,316,195.60
  5. Step 5: Solve for x
    x = 622,316,195.60/32,487.66
  6. Step 6: Final answer
    x = 19,155.46

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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.