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Finding the Fourth Proportional to 7,763.95, 10,714.22 and 4,227.19

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Solution

The fourth proportional to 7,763.95, 10,714.22 and 4,227.19 is: 5,833.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,763.95 : 10,714.22 = 4,227.19 : x
  2. Step 2: Convert to fraction form
    7,763.95/10,714.22 = 4,227.19/x
  3. Step 3: Cross multiply
    7,763.95x = 10,714.22 × 4,227.19
  4. Step 4: Simplify right side
    7,763.95x = 45,291,035.35
  5. Step 5: Solve for x
    x = 45,291,035.35/7,763.95
  6. Step 6: Final answer
    x = 5,833.50

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Half scale
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Double scale
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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.