Home / 66,528.18-99,793.89-19,781.46

Finding the Fourth Proportional to 66,528.18, 99,793.89 and 19,781.46

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Solution

The fourth proportional to 66,528.18, 99,793.89 and 19,781.46 is: 29,672.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,528.18 : 99,793.89 = 19,781.46 : x
  2. Step 2: Convert to fraction form
    66,528.18/99,793.89 = 19,781.46/x
  3. Step 3: Cross multiply
    66,528.18x = 99,793.89 × 19,781.46
  4. Step 4: Simplify right side
    66,528.18x = 1,974,068,843.28
  5. Step 5: Solve for x
    x = 1,974,068,843.28/66,528.18
  6. Step 6: Final answer
    x = 29,672.67

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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.