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Finding the Fourth Proportional to 8,374.92, 11,555.02 and 5,392.48

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Solution

The fourth proportional to 8,374.92, 11,555.02 and 5,392.48 is: 7,440.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,374.92 : 11,555.02 = 5,392.48 : x
  2. Step 2: Convert to fraction form
    8,374.92/11,555.02 = 5,392.48/x
  3. Step 3: Cross multiply
    8,374.92x = 11,555.02 × 5,392.48
  4. Step 4: Simplify right side
    8,374.92x = 62,310,214.25
  5. Step 5: Solve for x
    x = 62,310,214.25/8,374.92
  6. Step 6: Final answer
    x = 7,440.10

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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.