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Finding the Fourth Proportional to 15,167.02, 20,932.02 and 8,453.74

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Solution

The fourth proportional to 15,167.02, 20,932.02 and 8,453.74 is: 11,667.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,167.02 : 20,932.02 = 8,453.74 : x
  2. Step 2: Convert to fraction form
    15,167.02/20,932.02 = 8,453.74/x
  3. Step 3: Cross multiply
    15,167.02x = 20,932.02 × 8,453.74
  4. Step 4: Simplify right side
    15,167.02x = 176,953,854.75
  5. Step 5: Solve for x
    x = 176,953,854.75/15,167.02
  6. Step 6: Final answer
    x = 11,667.02

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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.