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Finding the Fourth Proportional to 48,787, 67,326.08 and 26,431

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Solution

The fourth proportional to 48,787, 67,326.08 and 26,431 is: 36,474.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,787 : 67,326.08 = 26,431 : x
  2. Step 2: Convert to fraction form
    48,787/67,326.08 = 26,431/x
  3. Step 3: Cross multiply
    48,787x = 67,326.08 × 26,431
  4. Step 4: Simplify right side
    48,787x = 1,779,495,620.48
  5. Step 5: Solve for x
    x = 1,779,495,620.48/48,787
  6. Step 6: Final answer
    x = 36,474.79

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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.