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Finding the Fourth Proportional to 38,460.40, 57,714.90 and 22,665.40

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Solution

The fourth proportional to 38,460.40, 57,714.90 and 22,665.40 is: 34,012.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,460.40 : 57,714.90 = 22,665.40 : x
  2. Step 2: Convert to fraction form
    38,460.40/57,714.90 = 22,665.40/x
  3. Step 3: Cross multiply
    38,460.40x = 57,714.90 × 22,665.40
  4. Step 4: Simplify right side
    38,460.40x = 1,308,131,294.46
  5. Step 5: Solve for x
    x = 1,308,131,294.46/38,460.40
  6. Step 6: Final answer
    x = 34,012.42

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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.