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Finding the Fourth Proportional to 66,801.93, 100,207.76 and 22,428.32

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Solution

The fourth proportional to 66,801.93, 100,207.76 and 22,428.32 is: 33,644.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,801.93 : 100,207.76 = 22,428.32 : x
  2. Step 2: Convert to fraction form
    66,801.93/100,207.76 = 22,428.32/x
  3. Step 3: Cross multiply
    66,801.93x = 100,207.76 × 22,428.32
  4. Step 4: Simplify right side
    66,801.93x = 2,247,491,094.58
  5. Step 5: Solve for x
    x = 2,247,491,094.58/66,801.93
  6. Step 6: Final answer
    x = 33,644.10

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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.