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Finding the Fourth Proportional to 66,233.76, 99,362.82 and 21,863.58

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Solution

The fourth proportional to 66,233.76, 99,362.82 and 21,863.58 is: 32,799.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,233.76 : 99,362.82 = 21,863.58 : x
  2. Step 2: Convert to fraction form
    66,233.76/99,362.82 = 21,863.58/x
  3. Step 3: Cross multiply
    66,233.76x = 99,362.82 × 21,863.58
  4. Step 4: Simplify right side
    66,233.76x = 2,172,426,964.10
  5. Step 5: Solve for x
    x = 2,172,426,964.10/66,233.76
  6. Step 6: Final answer
    x = 32,799.39

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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.