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Finding the Fourth Proportional to 7,200.95, 10,803.65 and 3,042.81

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Solution

The fourth proportional to 7,200.95, 10,803.65 and 3,042.81 is: 4,565.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,200.95 : 10,803.65 = 3,042.81 : x
  2. Step 2: Convert to fraction form
    7,200.95/10,803.65 = 3,042.81/x
  3. Step 3: Cross multiply
    7,200.95x = 10,803.65 × 3,042.81
  4. Step 4: Simplify right side
    7,200.95x = 32,873,439.04
  5. Step 5: Solve for x
    x = 32,873,439.04/7,200.95
  6. Step 6: Final answer
    x = 4,565.16

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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.