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Finding the Fourth Proportional to 8,718.84, 12,034.58 and 5,184.41

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Solution

The fourth proportional to 8,718.84, 12,034.58 and 5,184.41 is: 7,156.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,718.84 : 12,034.58 = 5,184.41 : x
  2. Step 2: Convert to fraction form
    8,718.84/12,034.58 = 5,184.41/x
  3. Step 3: Cross multiply
    8,718.84x = 12,034.58 × 5,184.41
  4. Step 4: Simplify right side
    8,718.84x = 62,392,110.80
  5. Step 5: Solve for x
    x = 62,392,110.80/8,718.84
  6. Step 6: Final answer
    x = 7,156.01

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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.