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Finding the Fourth Proportional to 4,433.40, 6,650.10 and 4,217.40

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Solution

The fourth proportional to 4,433.40, 6,650.10 and 4,217.40 is: 6,326.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,433.40 : 6,650.10 = 4,217.40 : x
  2. Step 2: Convert to fraction form
    4,433.40/6,650.10 = 4,217.40/x
  3. Step 3: Cross multiply
    4,433.40x = 6,650.10 × 4,217.40
  4. Step 4: Simplify right side
    4,433.40x = 28,046,131.74
  5. Step 5: Solve for x
    x = 28,046,131.74/4,433.40
  6. Step 6: Final answer
    x = 6,326.10

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Half scale
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Double scale
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Similar ratio
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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.