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Finding the Fourth Proportional to 43,515.70, 61,053.20 and 43,515.70

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Solution

The fourth proportional to 43,515.70, 61,053.20 and 43,515.70 is: 61,053.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,515.70 : 61,053.20 = 43,515.70 : x
  2. Step 2: Convert to fraction form
    43,515.70/61,053.20 = 43,515.70/x
  3. Step 3: Cross multiply
    43,515.70x = 61,053.20 × 43,515.70
  4. Step 4: Simplify right side
    43,515.70x = 2,656,772,735.24
  5. Step 5: Solve for x
    x = 2,656,772,735.24/43,515.70
  6. Step 6: Final answer
    x = 61,053.20

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.