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Finding the Fourth Proportional to 8,703.67, 12,012.96 and 5,348.26

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Solution

The fourth proportional to 8,703.67, 12,012.96 and 5,348.26 is: 7,381.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,703.67 : 12,012.96 = 5,348.26 : x
  2. Step 2: Convert to fraction form
    8,703.67/12,012.96 = 5,348.26/x
  3. Step 3: Cross multiply
    8,703.67x = 12,012.96 × 5,348.26
  4. Step 4: Simplify right side
    8,703.67x = 64,248,433.45
  5. Step 5: Solve for x
    x = 64,248,433.45/8,703.67
  6. Step 6: Final answer
    x = 7,381.76

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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.