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Finding the Fourth Proportional to 45,132, 62,267.76 and 29,228.64

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Solution

The fourth proportional to 45,132, 62,267.76 and 29,228.64 is: 40,326.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,132 : 62,267.76 = 29,228.64 : x
  2. Step 2: Convert to fraction form
    45,132/62,267.76 = 29,228.64/x
  3. Step 3: Cross multiply
    45,132x = 62,267.76 × 29,228.64
  4. Step 4: Simplify right side
    45,132x = 1,820,001,940.65
  5. Step 5: Solve for x
    x = 1,820,001,940.65/45,132
  6. Step 6: Final answer
    x = 40,326.20

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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.