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Finding the Fourth Proportional to 66,284.40, 99,359.40 and 32,953.20

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Solution

The fourth proportional to 66,284.40, 99,359.40 and 32,953.20 is: 49,396.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,284.40 : 99,359.40 = 32,953.20 : x
  2. Step 2: Convert to fraction form
    66,284.40/99,359.40 = 32,953.20/x
  3. Step 3: Cross multiply
    66,284.40x = 99,359.40 × 32,953.20
  4. Step 4: Simplify right side
    66,284.40x = 3,274,210,180.08
  5. Step 5: Solve for x
    x = 3,274,210,180.08/66,284.40
  6. Step 6: Final answer
    x = 49,396.39

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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.