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Finding the Fourth Proportional to 42,424.80, 63,637.20 and 24,637.20

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Solution

The fourth proportional to 42,424.80, 63,637.20 and 24,637.20 is: 36,955.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,424.80 : 63,637.20 = 24,637.20 : x
  2. Step 2: Convert to fraction form
    42,424.80/63,637.20 = 24,637.20/x
  3. Step 3: Cross multiply
    42,424.80x = 63,637.20 × 24,637.20
  4. Step 4: Simplify right side
    42,424.80x = 1,567,842,423.84
  5. Step 5: Solve for x
    x = 1,567,842,423.84/42,424.80
  6. Step 6: Final answer
    x = 36,955.80

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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.