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Finding the Fourth Proportional to 8,897.91, 13,348.47 and 2,974.22

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Solution

The fourth proportional to 8,897.91, 13,348.47 and 2,974.22 is: 4,461.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,897.91 : 13,348.47 = 2,974.22 : x
  2. Step 2: Convert to fraction form
    8,897.91/13,348.47 = 2,974.22/x
  3. Step 3: Cross multiply
    8,897.91x = 13,348.47 × 2,974.22
  4. Step 4: Simplify right side
    8,897.91x = 39,701,219.70
  5. Step 5: Solve for x
    x = 39,701,219.70/8,897.91
  6. Step 6: Final answer
    x = 4,461.86

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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.