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Finding the Fourth Proportional to 72,903.46, 109,355.19 and 17,499.46

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Solution

The fourth proportional to 72,903.46, 109,355.19 and 17,499.46 is: 26,249.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,903.46 : 109,355.19 = 17,499.46 : x
  2. Step 2: Convert to fraction form
    72,903.46/109,355.19 = 17,499.46/x
  3. Step 3: Cross multiply
    72,903.46x = 109,355.19 × 17,499.46
  4. Step 4: Simplify right side
    72,903.46x = 1,913,656,773.20
  5. Step 5: Solve for x
    x = 1,913,656,773.20/72,903.46
  6. Step 6: Final answer
    x = 26,249.19

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Similar ratio
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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.