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Finding the Fourth Proportional to 59,338.80, 88,998.60 and 21,916.50

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Solution

The fourth proportional to 59,338.80, 88,998.60 and 21,916.50 is: 32,871.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    59,338.80 : 88,998.60 = 21,916.50 : x
  2. Step 2: Convert to fraction form
    59,338.80/88,998.60 = 21,916.50/x
  3. Step 3: Cross multiply
    59,338.80x = 88,998.60 × 21,916.50
  4. Step 4: Simplify right side
    59,338.80x = 1,950,537,816.90
  5. Step 5: Solve for x
    x = 1,950,537,816.90/59,338.80
  6. Step 6: Final answer
    x = 32,871.20

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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.