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Finding the Fourth Proportional to 52,625.76, 72,622.70 and 28,751.92

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Solution

The fourth proportional to 52,625.76, 72,622.70 and 28,751.92 is: 39,677.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,625.76 : 72,622.70 = 28,751.92 : x
  2. Step 2: Convert to fraction form
    52,625.76/72,622.70 = 28,751.92/x
  3. Step 3: Cross multiply
    52,625.76x = 72,622.70 × 28,751.92
  4. Step 4: Simplify right side
    52,625.76x = 2,088,041,916.82
  5. Step 5: Solve for x
    x = 2,088,041,916.82/52,625.76
  6. Step 6: Final answer
    x = 39,677.18

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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.