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Finding the Fourth Proportional to 58,787.68, 88,156.00 and 21,335.30

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Solution

The fourth proportional to 58,787.68, 88,156.00 and 21,335.30 is: 31,993.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,787.68 : 88,156.00 = 21,335.30 : x
  2. Step 2: Convert to fraction form
    58,787.68/88,156.00 = 21,335.30/x
  3. Step 3: Cross multiply
    58,787.68x = 88,156.00 × 21,335.30
  4. Step 4: Simplify right side
    58,787.68x = 1,880,834,600.12
  5. Step 5: Solve for x
    x = 1,880,834,600.12/58,787.68
  6. Step 6: Final answer
    x = 31,993.69

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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.