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Finding the Fourth Proportional to 45,671.86, 68,507.70 and 17,214.13

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Solution

The fourth proportional to 45,671.86, 68,507.70 and 17,214.13 is: 25,821.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,671.86 : 68,507.70 = 17,214.13 : x
  2. Step 2: Convert to fraction form
    45,671.86/68,507.70 = 17,214.13/x
  3. Step 3: Cross multiply
    45,671.86x = 68,507.70 × 17,214.13
  4. Step 4: Simplify right side
    45,671.86x = 1,179,300,453.80
  5. Step 5: Solve for x
    x = 1,179,300,453.80/45,671.86
  6. Step 6: Final answer
    x = 25,821.16

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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.