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Finding the Fourth Proportional to 2,077.02, 3,116.97 and 922.86

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Solution

The fourth proportional to 2,077.02, 3,116.97 and 922.86 is: 1,384.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,077.02 : 3,116.97 = 922.86 : x
  2. Step 2: Convert to fraction form
    2,077.02/3,116.97 = 922.86/x
  3. Step 3: Cross multiply
    2,077.02x = 3,116.97 × 922.86
  4. Step 4: Simplify right side
    2,077.02x = 2,876,526.93
  5. Step 5: Solve for x
    x = 2,876,526.93/2,077.02
  6. Step 6: Final answer
    x = 1,384.93

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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.