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Finding the Fourth Proportional to 8,607.10, 12,910.74 and 3,673.66

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Solution

The fourth proportional to 8,607.10, 12,910.74 and 3,673.66 is: 5,510.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,607.10 : 12,910.74 = 3,673.66 : x
  2. Step 2: Convert to fraction form
    8,607.10/12,910.74 = 3,673.66/x
  3. Step 3: Cross multiply
    8,607.10x = 12,910.74 × 3,673.66
  4. Step 4: Simplify right side
    8,607.10x = 47,429,669.11
  5. Step 5: Solve for x
    x = 47,429,669.11/8,607.10
  6. Step 6: Final answer
    x = 5,510.53

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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.