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Finding the Fourth Proportional to 9,104.20, 13,630.70 and 8,848.20

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Solution

The fourth proportional to 9,104.20, 13,630.70 and 8,848.20 is: 13,247.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,104.20 : 13,630.70 = 8,848.20 : x
  2. Step 2: Convert to fraction form
    9,104.20/13,630.70 = 8,848.20/x
  3. Step 3: Cross multiply
    9,104.20x = 13,630.70 × 8,848.20
  4. Step 4: Simplify right side
    9,104.20x = 120,607,159.74
  5. Step 5: Solve for x
    x = 120,607,159.74/9,104.20
  6. Step 6: Final answer
    x = 13,247.42

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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.