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Finding the Fourth Proportional to 48,779, 67,315.04 and 26,423

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Solution

The fourth proportional to 48,779, 67,315.04 and 26,423 is: 36,463.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,779 : 67,315.04 = 26,423 : x
  2. Step 2: Convert to fraction form
    48,779/67,315.04 = 26,423/x
  3. Step 3: Cross multiply
    48,779x = 67,315.04 × 26,423
  4. Step 4: Simplify right side
    48,779x = 1,778,665,301.92
  5. Step 5: Solve for x
    x = 1,778,665,301.92/48,779
  6. Step 6: Final answer
    x = 36,463.75

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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.