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Finding the Fourth Proportional to 1,859.88, 2,566.86 and 1,073.90

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Solution

The fourth proportional to 1,859.88, 2,566.86 and 1,073.90 is: 1,482.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,859.88 : 2,566.86 = 1,073.90 : x
  2. Step 2: Convert to fraction form
    1,859.88/2,566.86 = 1,073.90/x
  3. Step 3: Cross multiply
    1,859.88x = 2,566.86 × 1,073.90
  4. Step 4: Simplify right side
    1,859.88x = 2,756,550.95
  5. Step 5: Solve for x
    x = 2,756,550.95/1,859.88
  6. Step 6: Final answer
    x = 1,482.11

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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.