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Finding the Fourth Proportional to 15,662,663.20, 23,493,994.80 and 14,599,781.20

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Solution

The fourth proportional to 15,662,663.20, 23,493,994.80 and 14,599,781.20 is: 21,899,671.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,662,663.20 : 23,493,994.80 = 14,599,781.20 : x
  2. Step 2: Convert to fraction form
    15,662,663.20/23,493,994.80 = 14,599,781.20/x
  3. Step 3: Cross multiply
    15,662,663.20x = 23,493,994.80 × 14,599,781.20
  4. Step 4: Simplify right side
    15,662,663.20x = 343,007,183,593,937.75
  5. Step 5: Solve for x
    x = 343,007,183,593,937.75/15,662,663.20
  6. Step 6: Final answer
    x = 21,899,671.80

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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.