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Finding the Fourth Proportional to 73,035.60, 109,601.25 and 25,649.45

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Solution

The fourth proportional to 73,035.60, 109,601.25 and 25,649.45 is: 38,490.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,035.60 : 109,601.25 = 25,649.45 : x
  2. Step 2: Convert to fraction form
    73,035.60/109,601.25 = 25,649.45/x
  3. Step 3: Cross multiply
    73,035.60x = 109,601.25 × 25,649.45
  4. Step 4: Simplify right side
    73,035.60x = 2,811,211,781.81
  5. Step 5: Solve for x
    x = 2,811,211,781.81/73,035.60
  6. Step 6: Final answer
    x = 38,490.98

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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.