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Finding the Fourth Proportional to 15,957.60, 22,026.40 and 10,919.84

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Solution

The fourth proportional to 15,957.60, 22,026.40 and 10,919.84 is: 15,072.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,957.60 : 22,026.40 = 10,919.84 : x
  2. Step 2: Convert to fraction form
    15,957.60/22,026.40 = 10,919.84/x
  3. Step 3: Cross multiply
    15,957.60x = 22,026.40 × 10,919.84
  4. Step 4: Simplify right side
    15,957.60x = 240,524,763.78
  5. Step 5: Solve for x
    x = 240,524,763.78/15,957.60
  6. Step 6: Final answer
    x = 15,072.74

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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.