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Finding the Fourth Proportional to 7,246.80, 10,870.20 and 5,606.55

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Solution

The fourth proportional to 7,246.80, 10,870.20 and 5,606.55 is: 8,409.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,246.80 : 10,870.20 = 5,606.55 : x
  2. Step 2: Convert to fraction form
    7,246.80/10,870.20 = 5,606.55/x
  3. Step 3: Cross multiply
    7,246.80x = 10,870.20 × 5,606.55
  4. Step 4: Simplify right side
    7,246.80x = 60,944,319.81
  5. Step 5: Solve for x
    x = 60,944,319.81/7,246.80
  6. Step 6: Final answer
    x = 8,409.83

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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.