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Finding the Fourth Proportional to 45,648.30, 68,472.45 and 29,901.90

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Solution

The fourth proportional to 45,648.30, 68,472.45 and 29,901.90 is: 44,852.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,648.30 : 68,472.45 = 29,901.90 : x
  2. Step 2: Convert to fraction form
    45,648.30/68,472.45 = 29,901.90/x
  3. Step 3: Cross multiply
    45,648.30x = 68,472.45 × 29,901.90
  4. Step 4: Simplify right side
    45,648.30x = 2,047,456,352.66
  5. Step 5: Solve for x
    x = 2,047,456,352.66/45,648.30
  6. Step 6: Final answer
    x = 44,852.85

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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.