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Finding the Fourth Proportional to 8,993.68, 12,417.96 and 5,461.66

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Solution

The fourth proportional to 8,993.68, 12,417.96 and 5,461.66 is: 7,541.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,993.68 : 12,417.96 = 5,461.66 : x
  2. Step 2: Convert to fraction form
    8,993.68/12,417.96 = 5,461.66/x
  3. Step 3: Cross multiply
    8,993.68x = 12,417.96 × 5,461.66
  4. Step 4: Simplify right side
    8,993.68x = 67,822,675.41
  5. Step 5: Solve for x
    x = 67,822,675.41/8,993.68
  6. Step 6: Final answer
    x = 7,541.15

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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.