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Finding the Fourth Proportional to 66,422.04, 99,662.40 and 34,824.54

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Solution

The fourth proportional to 66,422.04, 99,662.40 and 34,824.54 is: 52,252.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,422.04 : 99,662.40 = 34,824.54 : x
  2. Step 2: Convert to fraction form
    66,422.04/99,662.40 = 34,824.54/x
  3. Step 3: Cross multiply
    66,422.04x = 99,662.40 × 34,824.54
  4. Step 4: Simplify right side
    66,422.04x = 3,470,697,235.30
  5. Step 5: Solve for x
    x = 3,470,697,235.30/66,422.04
  6. Step 6: Final answer
    x = 52,252.19

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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.