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Finding the Fourth Proportional to 32,278.73, 48,420.89 and 8,905.17

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Solution

The fourth proportional to 32,278.73, 48,420.89 and 8,905.17 is: 13,358.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,278.73 : 48,420.89 = 8,905.17 : x
  2. Step 2: Convert to fraction form
    32,278.73/48,420.89 = 8,905.17/x
  3. Step 3: Cross multiply
    32,278.73x = 48,420.89 × 8,905.17
  4. Step 4: Simplify right side
    32,278.73x = 431,196,076.29
  5. Step 5: Solve for x
    x = 431,196,076.29/32,278.73
  6. Step 6: Final answer
    x = 13,358.52

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1.5x scale

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.