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Finding the Fourth Proportional to 1,859.63, 2,566.18 and 1,020.32

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Solution

The fourth proportional to 1,859.63, 2,566.18 and 1,020.32 is: 1,407.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,859.63 : 2,566.18 = 1,020.32 : x
  2. Step 2: Convert to fraction form
    1,859.63/2,566.18 = 1,020.32/x
  3. Step 3: Cross multiply
    1,859.63x = 2,566.18 × 1,020.32
  4. Step 4: Simplify right side
    1,859.63x = 2,618,314.50
  5. Step 5: Solve for x
    x = 2,618,314.50/1,859.63
  6. Step 6: Final answer
    x = 1,407.98

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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.