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Finding the Fourth Proportional to 15,143.58, 22,719.87 and 6,826.14

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Solution

The fourth proportional to 15,143.58, 22,719.87 and 6,826.14 is: 10,241.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,143.58 : 22,719.87 = 6,826.14 : x
  2. Step 2: Convert to fraction form
    15,143.58/22,719.87 = 6,826.14/x
  3. Step 3: Cross multiply
    15,143.58x = 22,719.87 × 6,826.14
  4. Step 4: Simplify right side
    15,143.58x = 155,089,013.40
  5. Step 5: Solve for x
    x = 155,089,013.40/15,143.58
  6. Step 6: Final answer
    x = 10,241.24

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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.