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Finding the Fourth Proportional to 12,503.17, 18,759.08 and 4,714.21

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Solution

The fourth proportional to 12,503.17, 18,759.08 and 4,714.21 is: 7,072.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,503.17 : 18,759.08 = 4,714.21 : x
  2. Step 2: Convert to fraction form
    12,503.17/18,759.08 = 4,714.21/x
  3. Step 3: Cross multiply
    12,503.17x = 18,759.08 × 4,714.21
  4. Step 4: Simplify right side
    12,503.17x = 88,434,242.53
  5. Step 5: Solve for x
    x = 88,434,242.53/12,503.17
  6. Step 6: Final answer
    x = 7,072.95

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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.