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Finding the Fourth Proportional to 8,774.52, 12,103.18 and 5,235

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Solution

The fourth proportional to 8,774.52, 12,103.18 and 5,235 is: 7,220.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,774.52 : 12,103.18 = 5,235 : x
  2. Step 2: Convert to fraction form
    8,774.52/12,103.18 = 5,235/x
  3. Step 3: Cross multiply
    8,774.52x = 12,103.18 × 5,235
  4. Step 4: Simplify right side
    8,774.52x = 63,360,147.30
  5. Step 5: Solve for x
    x = 63,360,147.30/8,774.52
  6. Step 6: Final answer
    x = 7,220.92

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.