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Finding the Fourth Proportional to 8,959.54, 12,364.91 and 4,981.02

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Solution

The fourth proportional to 8,959.54, 12,364.91 and 4,981.02 is: 6,874.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,959.54 : 12,364.91 = 4,981.02 : x
  2. Step 2: Convert to fraction form
    8,959.54/12,364.91 = 4,981.02/x
  3. Step 3: Cross multiply
    8,959.54x = 12,364.91 × 4,981.02
  4. Step 4: Simplify right side
    8,959.54x = 61,589,899.64
  5. Step 5: Solve for x
    x = 61,589,899.64/8,959.54
  6. Step 6: Final answer
    x = 6,874.23

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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.