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Finding the Fourth Proportional to 8,302.73, 12,461.90 and 5,531.36

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Solution

The fourth proportional to 8,302.73, 12,461.90 and 5,531.36 is: 8,302.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,302.73 : 12,461.90 = 5,531.36 : x
  2. Step 2: Convert to fraction form
    8,302.73/12,461.90 = 5,531.36/x
  3. Step 3: Cross multiply
    8,302.73x = 12,461.90 × 5,531.36
  4. Step 4: Simplify right side
    8,302.73x = 68,931,165.22
  5. Step 5: Solve for x
    x = 68,931,165.22/8,302.73
  6. Step 6: Final answer
    x = 8,302.23

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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.