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Finding the Fourth Proportional to 59,938.84, 89,905.02 and 18,385.84

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Solution

The fourth proportional to 59,938.84, 89,905.02 and 18,385.84 is: 27,577.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    59,938.84 : 89,905.02 = 18,385.84 : x
  2. Step 2: Convert to fraction form
    59,938.84/89,905.02 = 18,385.84/x
  3. Step 3: Cross multiply
    59,938.84x = 89,905.02 × 18,385.84
  4. Step 4: Simplify right side
    59,938.84x = 1,652,979,312.92
  5. Step 5: Solve for x
    x = 1,652,979,312.92/59,938.84
  6. Step 6: Final answer
    x = 27,577.77

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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.