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Finding the Fourth Proportional to 2,773.60, 3,831.60 and 2,566.24

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Solution

The fourth proportional to 2,773.60, 3,831.60 and 2,566.24 is: 3,545.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,773.60 : 3,831.60 = 2,566.24 : x
  2. Step 2: Convert to fraction form
    2,773.60/3,831.60 = 2,566.24/x
  3. Step 3: Cross multiply
    2,773.60x = 3,831.60 × 2,566.24
  4. Step 4: Simplify right side
    2,773.60x = 9,832,805.18
  5. Step 5: Solve for x
    x = 9,832,805.18/2,773.60
  6. Step 6: Final answer
    x = 3,545.14

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1.5x scale

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.