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Finding the Fourth Proportional to 45,291.28, 67,848.52 and 29,661.52

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Solution

The fourth proportional to 45,291.28, 67,848.52 and 29,661.52 is: 44,434.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,291.28 : 67,848.52 = 29,661.52 : x
  2. Step 2: Convert to fraction form
    45,291.28/67,848.52 = 29,661.52/x
  3. Step 3: Cross multiply
    45,291.28x = 67,848.52 × 29,661.52
  4. Step 4: Simplify right side
    45,291.28x = 2,012,490,232.95
  5. Step 5: Solve for x
    x = 2,012,490,232.95/45,291.28
  6. Step 6: Final answer
    x = 44,434.39

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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.