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Finding the Fourth Proportional to 1,859.48, 2,565.99 and 1,062.78

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Solution

The fourth proportional to 1,859.48, 2,565.99 and 1,062.78 is: 1,466.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,859.48 : 2,565.99 = 1,062.78 : x
  2. Step 2: Convert to fraction form
    1,859.48/2,565.99 = 1,062.78/x
  3. Step 3: Cross multiply
    1,859.48x = 2,565.99 × 1,062.78
  4. Step 4: Simplify right side
    1,859.48x = 2,727,082.85
  5. Step 5: Solve for x
    x = 2,727,082.85/1,859.48
  6. Step 6: Final answer
    x = 1,466.58

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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.