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Finding the Fourth Proportional to 48,839.60, 73,259.40 and 42,424.40

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Solution

The fourth proportional to 48,839.60, 73,259.40 and 42,424.40 is: 63,636.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,839.60 : 73,259.40 = 42,424.40 : x
  2. Step 2: Convert to fraction form
    48,839.60/73,259.40 = 42,424.40/x
  3. Step 3: Cross multiply
    48,839.60x = 73,259.40 × 42,424.40
  4. Step 4: Simplify right side
    48,839.60x = 3,107,986,089.36
  5. Step 5: Solve for x
    x = 3,107,986,089.36/48,839.60
  6. Step 6: Final answer
    x = 63,636.60

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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.