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Finding the Fourth Proportional to 8,698.55, 13,031.42 and 6,741.18

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Solution

The fourth proportional to 8,698.55, 13,031.42 and 6,741.18 is: 10,099.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,698.55 : 13,031.42 = 6,741.18 : x
  2. Step 2: Convert to fraction form
    8,698.55/13,031.42 = 6,741.18/x
  3. Step 3: Cross multiply
    8,698.55x = 13,031.42 × 6,741.18
  4. Step 4: Simplify right side
    8,698.55x = 87,847,114.17
  5. Step 5: Solve for x
    x = 87,847,114.17/8,698.55
  6. Step 6: Final answer
    x = 10,099.06

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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.