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Finding the Fourth Proportional to 57,383.70, 85,832.55 and 51,503.10

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Solution

The fourth proportional to 57,383.70, 85,832.55 and 51,503.10 is: 77,036.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,383.70 : 85,832.55 = 51,503.10 : x
  2. Step 2: Convert to fraction form
    57,383.70/85,832.55 = 51,503.10/x
  3. Step 3: Cross multiply
    57,383.70x = 85,832.55 × 51,503.10
  4. Step 4: Simplify right side
    57,383.70x = 4,420,642,405.91
  5. Step 5: Solve for x
    x = 4,420,642,405.91/57,383.70
  6. Step 6: Final answer
    x = 77,036.55

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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.