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Finding the Fourth Proportional to 11,095.70, 16,643.55 and 10,002.20

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Solution

The fourth proportional to 11,095.70, 16,643.55 and 10,002.20 is: 15,003.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,095.70 : 16,643.55 = 10,002.20 : x
  2. Step 2: Convert to fraction form
    11,095.70/16,643.55 = 10,002.20/x
  3. Step 3: Cross multiply
    11,095.70x = 16,643.55 × 10,002.20
  4. Step 4: Simplify right side
    11,095.70x = 166,472,115.81
  5. Step 5: Solve for x
    x = 166,472,115.81/11,095.70
  6. Step 6: Final answer
    x = 15,003.30

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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.