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Finding the Fourth Proportional to 39,903.48, 59,865.48 and 14,943.90

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Solution

The fourth proportional to 39,903.48, 59,865.48 and 14,943.90 is: 22,419.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,903.48 : 59,865.48 = 14,943.90 : x
  2. Step 2: Convert to fraction form
    39,903.48/59,865.48 = 14,943.90/x
  3. Step 3: Cross multiply
    39,903.48x = 59,865.48 × 14,943.90
  4. Step 4: Simplify right side
    39,903.48x = 894,623,746.57
  5. Step 5: Solve for x
    x = 894,623,746.57/39,903.48
  6. Step 6: Final answer
    x = 22,419.69

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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.