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Finding the Fourth Proportional to 59,704.77, 89,557.65 and 21,781.20

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Solution

The fourth proportional to 59,704.77, 89,557.65 and 21,781.20 is: 32,671.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    59,704.77 : 89,557.65 = 21,781.20 : x
  2. Step 2: Convert to fraction form
    59,704.77/89,557.65 = 21,781.20/x
  3. Step 3: Cross multiply
    59,704.77x = 89,557.65 × 21,781.20
  4. Step 4: Simplify right side
    59,704.77x = 1,950,673,422.02
  5. Step 5: Solve for x
    x = 1,950,673,422.02/59,704.77
  6. Step 6: Final answer
    x = 32,671.99

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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.