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Finding the Fourth Proportional to 17,700.94, 24,423.96 and 10,988.20

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Solution

The fourth proportional to 17,700.94, 24,423.96 and 10,988.20 is: 15,161.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,700.94 : 24,423.96 = 10,988.20 : x
  2. Step 2: Convert to fraction form
    17,700.94/24,423.96 = 10,988.20/x
  3. Step 3: Cross multiply
    17,700.94x = 24,423.96 × 10,988.20
  4. Step 4: Simplify right side
    17,700.94x = 268,375,357.27
  5. Step 5: Solve for x
    x = 268,375,357.27/17,700.94
  6. Step 6: Final answer
    x = 15,161.64

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1.5x scale

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.