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Finding the Fourth Proportional to 60,463.20, 90,709.20 and 25,384.80

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Solution

The fourth proportional to 60,463.20, 90,709.20 and 25,384.80 is: 38,083.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,463.20 : 90,709.20 = 25,384.80 : x
  2. Step 2: Convert to fraction form
    60,463.20/90,709.20 = 25,384.80/x
  3. Step 3: Cross multiply
    60,463.20x = 90,709.20 × 25,384.80
  4. Step 4: Simplify right side
    60,463.20x = 2,302,634,900.16
  5. Step 5: Solve for x
    x = 2,302,634,900.16/60,463.20
  6. Step 6: Final answer
    x = 38,083.25

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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.