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Finding the Fourth Proportional to 77,887.90, 116,843.12 and 24,561.78

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Solution

The fourth proportional to 77,887.90, 116,843.12 and 24,561.78 is: 36,846.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,887.90 : 116,843.12 = 24,561.78 : x
  2. Step 2: Convert to fraction form
    77,887.90/116,843.12 = 24,561.78/x
  3. Step 3: Cross multiply
    77,887.90x = 116,843.12 × 24,561.78
  4. Step 4: Simplify right side
    77,887.90x = 2,869,875,007.95
  5. Step 5: Solve for x
    x = 2,869,875,007.95/77,887.90
  6. Step 6: Final answer
    x = 36,846.22

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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.