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Finding the Fourth Proportional to 15,079.06, 20,795.47 and 9,414.32

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Solution

The fourth proportional to 15,079.06, 20,795.47 and 9,414.32 is: 12,983.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,079.06 : 20,795.47 = 9,414.32 : x
  2. Step 2: Convert to fraction form
    15,079.06/20,795.47 = 9,414.32/x
  3. Step 3: Cross multiply
    15,079.06x = 20,795.47 × 9,414.32
  4. Step 4: Simplify right side
    15,079.06x = 195,775,237.58
  5. Step 5: Solve for x
    x = 195,775,237.58/15,079.06
  6. Step 6: Final answer
    x = 12,983.25

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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.