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Finding the Fourth Proportional to 35,859.60, 53,805.24 and 12,502.80

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Solution

The fourth proportional to 35,859.60, 53,805.24 and 12,502.80 is: 18,759.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,859.60 : 53,805.24 = 12,502.80 : x
  2. Step 2: Convert to fraction form
    35,859.60/53,805.24 = 12,502.80/x
  3. Step 3: Cross multiply
    35,859.60x = 53,805.24 × 12,502.80
  4. Step 4: Simplify right side
    35,859.60x = 672,716,154.67
  5. Step 5: Solve for x
    x = 672,716,154.67/35,859.60
  6. Step 6: Final answer
    x = 18,759.72

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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.