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Finding the Fourth Proportional to 8,750.70, 12,076.20 and 5,395.74

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Solution

The fourth proportional to 8,750.70, 12,076.20 and 5,395.74 is: 7,446.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,750.70 : 12,076.20 = 5,395.74 : x
  2. Step 2: Convert to fraction form
    8,750.70/12,076.20 = 5,395.74/x
  3. Step 3: Cross multiply
    8,750.70x = 12,076.20 × 5,395.74
  4. Step 4: Simplify right side
    8,750.70x = 65,160,035.39
  5. Step 5: Solve for x
    x = 65,160,035.39/8,750.70
  6. Step 6: Final answer
    x = 7,446.27

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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.