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Finding the Fourth Proportional to 17,481,839.60, 26,222,759.40 and 15,781,228.40

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Solution

The fourth proportional to 17,481,839.60, 26,222,759.40 and 15,781,228.40 is: 23,671,842.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,481,839.60 : 26,222,759.40 = 15,781,228.40 : x
  2. Step 2: Convert to fraction form
    17,481,839.60/26,222,759.40 = 15,781,228.40/x
  3. Step 3: Cross multiply
    17,481,839.60x = 26,222,759.40 × 15,781,228.40
  4. Step 4: Simplify right side
    17,481,839.60x = 413,827,355,369,646.94
  5. Step 5: Solve for x
    x = 413,827,355,369,646.94/17,481,839.60
  6. Step 6: Final answer
    x = 23,671,842.60

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1.5x scale

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.