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Finding the Fourth Proportional to 18,922.71, 26,113.02 and 10,425.63

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Solution

The fourth proportional to 18,922.71, 26,113.02 and 10,425.63 is: 14,387.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,922.71 : 26,113.02 = 10,425.63 : x
  2. Step 2: Convert to fraction form
    18,922.71/26,113.02 = 10,425.63/x
  3. Step 3: Cross multiply
    18,922.71x = 26,113.02 × 10,425.63
  4. Step 4: Simplify right side
    18,922.71x = 272,244,684.70
  5. Step 5: Solve for x
    x = 272,244,684.70/18,922.71
  6. Step 6: Final answer
    x = 14,387.19

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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.