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Finding the Fourth Proportional to 6,915.59, 10,369.21 and 2,756.24

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Solution

The fourth proportional to 6,915.59, 10,369.21 and 2,756.24 is: 4,132.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,915.59 : 10,369.21 = 2,756.24 : x
  2. Step 2: Convert to fraction form
    6,915.59/10,369.21 = 2,756.24/x
  3. Step 3: Cross multiply
    6,915.59x = 10,369.21 × 2,756.24
  4. Step 4: Simplify right side
    6,915.59x = 28,580,031.37
  5. Step 5: Solve for x
    x = 28,580,031.37/6,915.59
  6. Step 6: Final answer
    x = 4,132.70

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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.