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Finding the Fourth Proportional to 38,875.70, 58,299.24 and 13,908.98

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Solution

The fourth proportional to 38,875.70, 58,299.24 and 13,908.98 is: 20,858.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,875.70 : 58,299.24 = 13,908.98 : x
  2. Step 2: Convert to fraction form
    38,875.70/58,299.24 = 13,908.98/x
  3. Step 3: Cross multiply
    38,875.70x = 58,299.24 × 13,908.98
  4. Step 4: Simplify right side
    38,875.70x = 810,882,963.18
  5. Step 5: Solve for x
    x = 810,882,963.18/38,875.70
  6. Step 6: Final answer
    x = 20,858.35

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1.5x scale

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.