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Finding the Fourth Proportional to 39,247.68, 58,835.28 and 14,281.68

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Solution

The fourth proportional to 39,247.68, 58,835.28 and 14,281.68 is: 21,409.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,247.68 : 58,835.28 = 14,281.68 : x
  2. Step 2: Convert to fraction form
    39,247.68/58,835.28 = 14,281.68/x
  3. Step 3: Cross multiply
    39,247.68x = 58,835.28 × 14,281.68
  4. Step 4: Simplify right side
    39,247.68x = 840,266,641.67
  5. Step 5: Solve for x
    x = 840,266,641.67/39,247.68
  6. Step 6: Final answer
    x = 21,409.33

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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.