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Finding the Fourth Proportional to 8,943.74, 12,333.77 and 5,358.12

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Solution

The fourth proportional to 8,943.74, 12,333.77 and 5,358.12 is: 7,389.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,943.74 : 12,333.77 = 5,358.12 : x
  2. Step 2: Convert to fraction form
    8,943.74/12,333.77 = 5,358.12/x
  3. Step 3: Cross multiply
    8,943.74x = 12,333.77 × 5,358.12
  4. Step 4: Simplify right side
    8,943.74x = 66,085,819.71
  5. Step 5: Solve for x
    x = 66,085,819.71/8,943.74
  6. Step 6: Final answer
    x = 7,389.06

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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.