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Finding the Fourth Proportional to 60,891.96, 91,345.20 and 25,827

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Solution

The fourth proportional to 60,891.96, 91,345.20 and 25,827 is: 38,743.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,891.96 : 91,345.20 = 25,827 : x
  2. Step 2: Convert to fraction form
    60,891.96/91,345.20 = 25,827/x
  3. Step 3: Cross multiply
    60,891.96x = 91,345.20 × 25,827
  4. Step 4: Simplify right side
    60,891.96x = 2,359,172,480.40
  5. Step 5: Solve for x
    x = 2,359,172,480.40/60,891.96
  6. Step 6: Final answer
    x = 38,743.58

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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.