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Finding the Fourth Proportional to 7,765.22, 10,718.02 and 4,933.96

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Solution

The fourth proportional to 7,765.22, 10,718.02 and 4,933.96 is: 6,810.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,765.22 : 10,718.02 = 4,933.96 : x
  2. Step 2: Convert to fraction form
    7,765.22/10,718.02 = 4,933.96/x
  3. Step 3: Cross multiply
    7,765.22x = 10,718.02 × 4,933.96
  4. Step 4: Simplify right side
    7,765.22x = 52,882,281.96
  5. Step 5: Solve for x
    x = 52,882,281.96/7,765.22
  6. Step 6: Final answer
    x = 6,810.15

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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.