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Finding the Fourth Proportional to 57,215.71, 85,832.75 and 17,763.58

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Solution

The fourth proportional to 57,215.71, 85,832.75 and 17,763.58 is: 26,648.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,215.71 : 85,832.75 = 17,763.58 : x
  2. Step 2: Convert to fraction form
    57,215.71/85,832.75 = 17,763.58/x
  3. Step 3: Cross multiply
    57,215.71x = 85,832.75 × 17,763.58
  4. Step 4: Simplify right side
    57,215.71x = 1,524,696,921.25
  5. Step 5: Solve for x
    x = 1,524,696,921.25/57,215.71
  6. Step 6: Final answer
    x = 26,648.22

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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.