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Finding the Fourth Proportional to 66,646.64, 99,933.24 and 22,250

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Solution

The fourth proportional to 66,646.64, 99,933.24 and 22,250 is: 33,362.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,646.64 : 99,933.24 = 22,250 : x
  2. Step 2: Convert to fraction form
    66,646.64/99,933.24 = 22,250/x
  3. Step 3: Cross multiply
    66,646.64x = 99,933.24 × 22,250
  4. Step 4: Simplify right side
    66,646.64x = 2,223,514,590
  5. Step 5: Solve for x
    x = 2,223,514,590/66,646.64
  6. Step 6: Final answer
    x = 33,362.74

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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.