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Finding the Fourth Proportional to 10,343.70, 15,512.72 and 4,499.01

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Solution

The fourth proportional to 10,343.70, 15,512.72 and 4,499.01 is: 6,747.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,343.70 : 15,512.72 = 4,499.01 : x
  2. Step 2: Convert to fraction form
    10,343.70/15,512.72 = 4,499.01/x
  3. Step 3: Cross multiply
    10,343.70x = 15,512.72 × 4,499.01
  4. Step 4: Simplify right side
    10,343.70x = 69,791,859.91
  5. Step 5: Solve for x
    x = 69,791,859.91/10,343.70
  6. Step 6: Final answer
    x = 6,747.28

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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.