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Finding the Fourth Proportional to 27,281.59, 40,937.72 and 10,642.77

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Solution

The fourth proportional to 27,281.59, 40,937.72 and 10,642.77 is: 15,970.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,281.59 : 40,937.72 = 10,642.77 : x
  2. Step 2: Convert to fraction form
    27,281.59/40,937.72 = 10,642.77/x
  3. Step 3: Cross multiply
    27,281.59x = 40,937.72 × 10,642.77
  4. Step 4: Simplify right side
    27,281.59x = 435,690,685.07
  5. Step 5: Solve for x
    x = 435,690,685.07/27,281.59
  6. Step 6: Final answer
    x = 15,970.14

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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.