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Finding the Fourth Proportional to 38,456.40, 57,587.40 and 36,706.80

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Solution

The fourth proportional to 38,456.40, 57,587.40 and 36,706.80 is: 54,967.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,456.40 : 57,587.40 = 36,706.80 : x
  2. Step 2: Convert to fraction form
    38,456.40/57,587.40 = 36,706.80/x
  3. Step 3: Cross multiply
    38,456.40x = 57,587.40 × 36,706.80
  4. Step 4: Simplify right side
    38,456.40x = 2,113,849,174.32
  5. Step 5: Solve for x
    x = 2,113,849,174.32/38,456.40
  6. Step 6: Final answer
    x = 54,967.42

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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.