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Finding the Fourth Proportional to 1,823.76, 2,516.78 and 995.76

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Solution

The fourth proportional to 1,823.76, 2,516.78 and 995.76 is: 1,374.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,823.76 : 2,516.78 = 995.76 : x
  2. Step 2: Convert to fraction form
    1,823.76/2,516.78 = 995.76/x
  3. Step 3: Cross multiply
    1,823.76x = 2,516.78 × 995.76
  4. Step 4: Simplify right side
    1,823.76x = 2,506,108.85
  5. Step 5: Solve for x
    x = 2,506,108.85/1,823.76
  6. Step 6: Final answer
    x = 1,374.14

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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.