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Finding the Fourth Proportional to 13,079.01, 18,048.99 and 7,110.69

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Solution

The fourth proportional to 13,079.01, 18,048.99 and 7,110.69 is: 9,812.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,079.01 : 18,048.99 = 7,110.69 : x
  2. Step 2: Convert to fraction form
    13,079.01/18,048.99 = 7,110.69/x
  3. Step 3: Cross multiply
    13,079.01x = 18,048.99 × 7,110.69
  4. Step 4: Simplify right side
    13,079.01x = 128,340,772.70
  5. Step 5: Solve for x
    x = 128,340,772.70/13,079.01
  6. Step 6: Final answer
    x = 9,812.73

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.