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Finding the Fourth Proportional to 59,235.30, 88,821.75 and 21,785.70

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Solution

The fourth proportional to 59,235.30, 88,821.75 and 21,785.70 is: 32,667.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    59,235.30 : 88,821.75 = 21,785.70 : x
  2. Step 2: Convert to fraction form
    59,235.30/88,821.75 = 21,785.70/x
  3. Step 3: Cross multiply
    59,235.30x = 88,821.75 × 21,785.70
  4. Step 4: Simplify right side
    59,235.30x = 1,935,043,998.98
  5. Step 5: Solve for x
    x = 1,935,043,998.98/59,235.30
  6. Step 6: Final answer
    x = 32,667.08

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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.