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Finding the Fourth Proportional to 2,666.65, 4,000.55 and 1,023.19

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Solution

The fourth proportional to 2,666.65, 4,000.55 and 1,023.19 is: 1,535.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,666.65 : 4,000.55 = 1,023.19 : x
  2. Step 2: Convert to fraction form
    2,666.65/4,000.55 = 1,023.19/x
  3. Step 3: Cross multiply
    2,666.65x = 4,000.55 × 1,023.19
  4. Step 4: Simplify right side
    2,666.65x = 4,093,300.19
  5. Step 5: Solve for x
    x = 4,093,300.19/2,666.65
  6. Step 6: Final answer
    x = 1,535.00

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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.