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Finding the Fourth Proportional to 1,823.13, 2,515.92 and 995.13

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Solution

The fourth proportional to 1,823.13, 2,515.92 and 995.13 is: 1,373.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,823.13 : 2,515.92 = 995.13 : x
  2. Step 2: Convert to fraction form
    1,823.13/2,515.92 = 995.13/x
  3. Step 3: Cross multiply
    1,823.13x = 2,515.92 × 995.13
  4. Step 4: Simplify right side
    1,823.13x = 2,503,667.47
  5. Step 5: Solve for x
    x = 2,503,667.47/1,823.13
  6. Step 6: Final answer
    x = 1,373.28

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1.5x scale

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.