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Finding the Fourth Proportional to 10,012.85, 15,019.10 and 4,088.43

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Solution

The fourth proportional to 10,012.85, 15,019.10 and 4,088.43 is: 6,132.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,012.85 : 15,019.10 = 4,088.43 : x
  2. Step 2: Convert to fraction form
    10,012.85/15,019.10 = 4,088.43/x
  3. Step 3: Cross multiply
    10,012.85x = 15,019.10 × 4,088.43
  4. Step 4: Simplify right side
    10,012.85x = 61,404,556.90
  5. Step 5: Solve for x
    x = 61,404,556.90/10,012.85
  6. Step 6: Final answer
    x = 6,132.58

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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.