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Finding the Fourth Proportional to 8,944.01, 12,340.21 and 5,590.22

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Solution

The fourth proportional to 8,944.01, 12,340.21 and 5,590.22 is: 7,712.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,944.01 : 12,340.21 = 5,590.22 : x
  2. Step 2: Convert to fraction form
    8,944.01/12,340.21 = 5,590.22/x
  3. Step 3: Cross multiply
    8,944.01x = 12,340.21 × 5,590.22
  4. Step 4: Simplify right side
    8,944.01x = 68,984,460.80
  5. Step 5: Solve for x
    x = 68,984,460.80/8,944.01
  6. Step 6: Final answer
    x = 7,712.93

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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.