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Finding the Fourth Proportional to 10,448.76, 15,766.32 and 10,043.76

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Solution

The fourth proportional to 10,448.76, 15,766.32 and 10,043.76 is: 15,155.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,448.76 : 15,766.32 = 10,043.76 : x
  2. Step 2: Convert to fraction form
    10,448.76/15,766.32 = 10,043.76/x
  3. Step 3: Cross multiply
    10,448.76x = 15,766.32 × 10,043.76
  4. Step 4: Simplify right side
    10,448.76x = 158,353,134.16
  5. Step 5: Solve for x
    x = 158,353,134.16/10,448.76
  6. Step 6: Final answer
    x = 15,155.21

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.