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Finding the Fourth Proportional to 10,859.76, 16,296.05 and 4,621.05

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Solution

The fourth proportional to 10,859.76, 16,296.05 and 4,621.05 is: 6,934.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,859.76 : 16,296.05 = 4,621.05 : x
  2. Step 2: Convert to fraction form
    10,859.76/16,296.05 = 4,621.05/x
  3. Step 3: Cross multiply
    10,859.76x = 16,296.05 × 4,621.05
  4. Step 4: Simplify right side
    10,859.76x = 75,304,873.41
  5. Step 5: Solve for x
    x = 75,304,873.41/10,859.76
  6. Step 6: Final answer
    x = 6,934.30

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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.