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Finding the Fourth Proportional to 7,323.80, 10,987.32 and 4,035.20

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Solution

The fourth proportional to 7,323.80, 10,987.32 and 4,035.20 is: 6,053.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,323.80 : 10,987.32 = 4,035.20 : x
  2. Step 2: Convert to fraction form
    7,323.80/10,987.32 = 4,035.20/x
  3. Step 3: Cross multiply
    7,323.80x = 10,987.32 × 4,035.20
  4. Step 4: Simplify right side
    7,323.80x = 44,335,993.86
  5. Step 5: Solve for x
    x = 44,335,993.86/7,323.80
  6. Step 6: Final answer
    x = 6,053.69

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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.