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Finding the Fourth Proportional to 66,599.34, 99,884.27 and 19,203.92

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Solution

The fourth proportional to 66,599.34, 99,884.27 and 19,203.92 is: 28,801.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,599.34 : 99,884.27 = 19,203.92 : x
  2. Step 2: Convert to fraction form
    66,599.34/99,884.27 = 19,203.92/x
  3. Step 3: Cross multiply
    66,599.34x = 99,884.27 × 19,203.92
  4. Step 4: Simplify right side
    66,599.34x = 1,918,168,934.90
  5. Step 5: Solve for x
    x = 1,918,168,934.90/66,599.34
  6. Step 6: Final answer
    x = 28,801.62

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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.