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Finding the Fourth Proportional to 57,876.34, 79,873.31 and 32,385.13

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Solution

The fourth proportional to 57,876.34, 79,873.31 and 32,385.13 is: 44,693.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,876.34 : 79,873.31 = 32,385.13 : x
  2. Step 2: Convert to fraction form
    57,876.34/79,873.31 = 32,385.13/x
  3. Step 3: Cross multiply
    57,876.34x = 79,873.31 × 32,385.13
  4. Step 4: Simplify right side
    57,876.34x = 2,586,707,128.51
  5. Step 5: Solve for x
    x = 2,586,707,128.51/57,876.34
  6. Step 6: Final answer
    x = 44,693.69

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.