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Finding the Fourth Proportional to 9,031.70, 13,547.55 and 8,375.60

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Solution

The fourth proportional to 9,031.70, 13,547.55 and 8,375.60 is: 12,563.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,031.70 : 13,547.55 = 8,375.60 : x
  2. Step 2: Convert to fraction form
    9,031.70/13,547.55 = 8,375.60/x
  3. Step 3: Cross multiply
    9,031.70x = 13,547.55 × 8,375.60
  4. Step 4: Simplify right side
    9,031.70x = 113,468,859.78
  5. Step 5: Solve for x
    x = 113,468,859.78/9,031.70
  6. Step 6: Final answer
    x = 12,563.40

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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.