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Finding the Fourth Proportional to 8,974.51, 13,461.62 and 2,818.51

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Solution

The fourth proportional to 8,974.51, 13,461.62 and 2,818.51 is: 4,227.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,974.51 : 13,461.62 = 2,818.51 : x
  2. Step 2: Convert to fraction form
    8,974.51/13,461.62 = 2,818.51/x
  3. Step 3: Cross multiply
    8,974.51x = 13,461.62 × 2,818.51
  4. Step 4: Simplify right side
    8,974.51x = 37,941,710.59
  5. Step 5: Solve for x
    x = 37,941,710.59/8,974.51
  6. Step 6: Final answer
    x = 4,227.72

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.