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Finding the Fourth Proportional to 58,476.66, 87,725.81 and 18,505.70

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Solution

The fourth proportional to 58,476.66, 87,725.81 and 18,505.70 is: 27,761.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,476.66 : 87,725.81 = 18,505.70 : x
  2. Step 2: Convert to fraction form
    58,476.66/87,725.81 = 18,505.70/x
  3. Step 3: Cross multiply
    58,476.66x = 87,725.81 × 18,505.70
  4. Step 4: Simplify right side
    58,476.66x = 1,623,427,776.77
  5. Step 5: Solve for x
    x = 1,623,427,776.77/58,476.66
  6. Step 6: Final answer
    x = 27,761.98

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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.