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Finding the Fourth Proportional to 8,839.86, 13,236.12 and 4,671.24

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Solution

The fourth proportional to 8,839.86, 13,236.12 and 4,671.24 is: 6,994.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,839.86 : 13,236.12 = 4,671.24 : x
  2. Step 2: Convert to fraction form
    8,839.86/13,236.12 = 4,671.24/x
  3. Step 3: Cross multiply
    8,839.86x = 13,236.12 × 4,671.24
  4. Step 4: Simplify right side
    8,839.86x = 61,829,093.19
  5. Step 5: Solve for x
    x = 61,829,093.19/8,839.86
  6. Step 6: Final answer
    x = 6,994.35

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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.