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Finding the Fourth Proportional to 14,989.74, 20,691.92 and 9,026.52

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Solution

The fourth proportional to 14,989.74, 20,691.92 and 9,026.52 is: 12,460.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,989.74 : 20,691.92 = 9,026.52 : x
  2. Step 2: Convert to fraction form
    14,989.74/20,691.92 = 9,026.52/x
  3. Step 3: Cross multiply
    14,989.74x = 20,691.92 × 9,026.52
  4. Step 4: Simplify right side
    14,989.74x = 186,775,984.59
  5. Step 5: Solve for x
    x = 186,775,984.59/14,989.74
  6. Step 6: Final answer
    x = 12,460.26

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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.