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Finding the Fourth Proportional to 2,566.90, 3,849.36 and 922.96

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Solution

The fourth proportional to 2,566.90, 3,849.36 and 922.96 is: 1,384.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,566.90 : 3,849.36 = 922.96 : x
  2. Step 2: Convert to fraction form
    2,566.90/3,849.36 = 922.96/x
  3. Step 3: Cross multiply
    2,566.90x = 3,849.36 × 922.96
  4. Step 4: Simplify right side
    2,566.90x = 3,552,805.31
  5. Step 5: Solve for x
    x = 3,552,805.31/2,566.90
  6. Step 6: Final answer
    x = 1,384.08

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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.