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Finding the Fourth Proportional to 8,697.96, 13,046.78 and 3,503.72

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Solution

The fourth proportional to 8,697.96, 13,046.78 and 3,503.72 is: 5,255.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,697.96 : 13,046.78 = 3,503.72 : x
  2. Step 2: Convert to fraction form
    8,697.96/13,046.78 = 3,503.72/x
  3. Step 3: Cross multiply
    8,697.96x = 13,046.78 × 3,503.72
  4. Step 4: Simplify right side
    8,697.96x = 45,712,264.02
  5. Step 5: Solve for x
    x = 45,712,264.02/8,697.96
  6. Step 6: Final answer
    x = 5,255.52

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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.