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Finding the Fourth Proportional to 48,840, 67,399.20 and 26,484

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Solution

The fourth proportional to 48,840, 67,399.20 and 26,484 is: 36,547.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,840 : 67,399.20 = 26,484 : x
  2. Step 2: Convert to fraction form
    48,840/67,399.20 = 26,484/x
  3. Step 3: Cross multiply
    48,840x = 67,399.20 × 26,484
  4. Step 4: Simplify right side
    48,840x = 1,785,000,412.80
  5. Step 5: Solve for x
    x = 1,785,000,412.80/48,840
  6. Step 6: Final answer
    x = 36,547.92

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.