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Finding the Fourth Proportional to 10,989.64, 16,482.84 and 3,594.88

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Solution

The fourth proportional to 10,989.64, 16,482.84 and 3,594.88 is: 5,391.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,989.64 : 16,482.84 = 3,594.88 : x
  2. Step 2: Convert to fraction form
    10,989.64/16,482.84 = 3,594.88/x
  3. Step 3: Cross multiply
    10,989.64x = 16,482.84 × 3,594.88
  4. Step 4: Simplify right side
    10,989.64x = 59,253,831.86
  5. Step 5: Solve for x
    x = 59,253,831.86/10,989.64
  6. Step 6: Final answer
    x = 5,391.79

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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.