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Finding the Fourth Proportional to 48,905, 67,489.70 and 26,549

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Solution

The fourth proportional to 48,905, 67,489.70 and 26,549 is: 36,638.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,905 : 67,489.70 = 26,549 : x
  2. Step 2: Convert to fraction form
    48,905/67,489.70 = 26,549/x
  3. Step 3: Cross multiply
    48,905x = 67,489.70 × 26,549
  4. Step 4: Simplify right side
    48,905x = 1,791,784,045.30
  5. Step 5: Solve for x
    x = 1,791,784,045.30/48,905
  6. Step 6: Final answer
    x = 36,638.05

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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.