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Finding the Fourth Proportional to 2,354.76, 3,249.12 and 1,423.32

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Solution

The fourth proportional to 2,354.76, 3,249.12 and 1,423.32 is: 1,963.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,354.76 : 3,249.12 = 1,423.32 : x
  2. Step 2: Convert to fraction form
    2,354.76/3,249.12 = 1,423.32/x
  3. Step 3: Cross multiply
    2,354.76x = 3,249.12 × 1,423.32
  4. Step 4: Simplify right side
    2,354.76x = 4,624,537.48
  5. Step 5: Solve for x
    x = 4,624,537.48/2,354.76
  6. Step 6: Final answer
    x = 1,963.91

Related Problems

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Half scale
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Double scale
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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.