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Finding the Fourth Proportional to 10,899.03, 15,042.38 and 6,651.01

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Solution

The fourth proportional to 10,899.03, 15,042.38 and 6,651.01 is: 9,179.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,899.03 : 15,042.38 = 6,651.01 : x
  2. Step 2: Convert to fraction form
    10,899.03/15,042.38 = 6,651.01/x
  3. Step 3: Cross multiply
    10,899.03x = 15,042.38 × 6,651.01
  4. Step 4: Simplify right side
    10,899.03x = 100,047,019.80
  5. Step 5: Solve for x
    x = 100,047,019.80/10,899.03
  6. Step 6: Final answer
    x = 9,179.44

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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.