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Finding the Fourth Proportional to 8,751.60, 12,076.26 and 5,214.12

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Solution

The fourth proportional to 8,751.60, 12,076.26 and 5,214.12 is: 7,194.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,751.60 : 12,076.26 = 5,214.12 : x
  2. Step 2: Convert to fraction form
    8,751.60/12,076.26 = 5,214.12/x
  3. Step 3: Cross multiply
    8,751.60x = 12,076.26 × 5,214.12
  4. Step 4: Simplify right side
    8,751.60x = 62,967,068.79
  5. Step 5: Solve for x
    x = 62,967,068.79/8,751.60
  6. Step 6: Final answer
    x = 7,194.92

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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.