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Finding the Fourth Proportional to 50,988.48, 70,363.68 and 28,632

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Solution

The fourth proportional to 50,988.48, 70,363.68 and 28,632 is: 39,511.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,988.48 : 70,363.68 = 28,632 : x
  2. Step 2: Convert to fraction form
    50,988.48/70,363.68 = 28,632/x
  3. Step 3: Cross multiply
    50,988.48x = 70,363.68 × 28,632
  4. Step 4: Simplify right side
    50,988.48x = 2,014,652,885.76
  5. Step 5: Solve for x
    x = 2,014,652,885.76/50,988.48
  6. Step 6: Final answer
    x = 39,511.92

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.