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Finding the Fourth Proportional to 8,748.36, 12,071.06 and 5,164.44

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Solution

The fourth proportional to 8,748.36, 12,071.06 and 5,164.44 is: 7,125.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,748.36 : 12,071.06 = 5,164.44 : x
  2. Step 2: Convert to fraction form
    8,748.36/12,071.06 = 5,164.44/x
  3. Step 3: Cross multiply
    8,748.36x = 12,071.06 × 5,164.44
  4. Step 4: Simplify right side
    8,748.36x = 62,340,265.11
  5. Step 5: Solve for x
    x = 62,340,265.11/8,748.36
  6. Step 6: Final answer
    x = 7,125.94

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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.