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Finding the Fourth Proportional to 40,448.78, 60,700.52 and 14,153.75

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Solution

The fourth proportional to 40,448.78, 60,700.52 and 14,153.75 is: 21,240.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,448.78 : 60,700.52 = 14,153.75 : x
  2. Step 2: Convert to fraction form
    40,448.78/60,700.52 = 14,153.75/x
  3. Step 3: Cross multiply
    40,448.78x = 60,700.52 × 14,153.75
  4. Step 4: Simplify right side
    40,448.78x = 859,140,065.93
  5. Step 5: Solve for x
    x = 859,140,065.93/40,448.78
  6. Step 6: Final answer
    x = 21,240.20

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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.