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Finding the Fourth Proportional to 32,775.60, 45,230.16 and 18,631.17

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Solution

The fourth proportional to 32,775.60, 45,230.16 and 18,631.17 is: 25,710.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,775.60 : 45,230.16 = 18,631.17 : x
  2. Step 2: Convert to fraction form
    32,775.60/45,230.16 = 18,631.17/x
  3. Step 3: Cross multiply
    32,775.60x = 45,230.16 × 18,631.17
  4. Step 4: Simplify right side
    32,775.60x = 842,690,800.09
  5. Step 5: Solve for x
    x = 842,690,800.09/32,775.60
  6. Step 6: Final answer
    x = 25,710.92

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1.5x scale

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.