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Finding the Fourth Proportional to 7,680.92, 10,599.12 and 4,323.56

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Solution

The fourth proportional to 7,680.92, 10,599.12 and 4,323.56 is: 5,966.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,680.92 : 10,599.12 = 4,323.56 : x
  2. Step 2: Convert to fraction form
    7,680.92/10,599.12 = 4,323.56/x
  3. Step 3: Cross multiply
    7,680.92x = 10,599.12 × 4,323.56
  4. Step 4: Simplify right side
    7,680.92x = 45,825,931.27
  5. Step 5: Solve for x
    x = 45,825,931.27/7,680.92
  6. Step 6: Final answer
    x = 5,966.20

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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.