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Finding the Fourth Proportional to 12,598,874.84, 17,391,821.55 and 8,471,298.48

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Solution

The fourth proportional to 12,598,874.84, 17,391,821.55 and 8,471,298.48 is: 11,694,005.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,598,874.84 : 17,391,821.55 = 8,471,298.48 : x
  2. Step 2: Convert to fraction form
    12,598,874.84/17,391,821.55 = 8,471,298.48/x
  3. Step 3: Cross multiply
    12,598,874.84x = 17,391,821.55 × 8,471,298.48
  4. Step 4: Simplify right side
    12,598,874.84x = 147,331,311,460,946.25
  5. Step 5: Solve for x
    x = 147,331,311,460,946.25/12,598,874.84
  6. Step 6: Final answer
    x = 11,694,005.49

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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.