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Finding the Fourth Proportional to 14,920.32, 22,365.54 and 7,134.60

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Solution

The fourth proportional to 14,920.32, 22,365.54 and 7,134.60 is: 10,694.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,920.32 : 22,365.54 = 7,134.60 : x
  2. Step 2: Convert to fraction form
    14,920.32/22,365.54 = 7,134.60/x
  3. Step 3: Cross multiply
    14,920.32x = 22,365.54 × 7,134.60
  4. Step 4: Simplify right side
    14,920.32x = 159,569,181.68
  5. Step 5: Solve for x
    x = 159,569,181.68/14,920.32
  6. Step 6: Final answer
    x = 10,694.76

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.