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Finding the Fourth Proportional to 58,361.16, 87,549.84 and 18,905.52

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Solution

The fourth proportional to 58,361.16, 87,549.84 and 18,905.52 is: 28,360.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,361.16 : 87,549.84 = 18,905.52 : x
  2. Step 2: Convert to fraction form
    58,361.16/87,549.84 = 18,905.52/x
  3. Step 3: Cross multiply
    58,361.16x = 87,549.84 × 18,905.52
  4. Step 4: Simplify right side
    58,361.16x = 1,655,175,251.12
  5. Step 5: Solve for x
    x = 1,655,175,251.12/58,361.16
  6. Step 6: Final answer
    x = 28,360.90

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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.