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Finding the Fourth Proportional to 38,218.70, 57,328.05 and 29,470.70

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Solution

The fourth proportional to 38,218.70, 57,328.05 and 29,470.70 is: 44,206.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,218.70 : 57,328.05 = 29,470.70 : x
  2. Step 2: Convert to fraction form
    38,218.70/57,328.05 = 29,470.70/x
  3. Step 3: Cross multiply
    38,218.70x = 57,328.05 × 29,470.70
  4. Step 4: Simplify right side
    38,218.70x = 1,689,497,763.14
  5. Step 5: Solve for x
    x = 1,689,497,763.14/38,218.70
  6. Step 6: Final answer
    x = 44,206.05

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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.