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Finding the Fourth Proportional to 45,800.68, 68,701.07 and 12,521.03

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Solution

The fourth proportional to 45,800.68, 68,701.07 and 12,521.03 is: 18,781.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,800.68 : 68,701.07 = 12,521.03 : x
  2. Step 2: Convert to fraction form
    45,800.68/68,701.07 = 12,521.03/x
  3. Step 3: Cross multiply
    45,800.68x = 68,701.07 × 12,521.03
  4. Step 4: Simplify right side
    45,800.68x = 860,208,250.35
  5. Step 5: Solve for x
    x = 860,208,250.35/45,800.68
  6. Step 6: Final answer
    x = 18,781.56

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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.