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Finding the Fourth Proportional to 4,459.58, 6,689.40 and 3,486.50

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Solution

The fourth proportional to 4,459.58, 6,689.40 and 3,486.50 is: 5,229.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,459.58 : 6,689.40 = 3,486.50 : x
  2. Step 2: Convert to fraction form
    4,459.58/6,689.40 = 3,486.50/x
  3. Step 3: Cross multiply
    4,459.58x = 6,689.40 × 3,486.50
  4. Step 4: Simplify right side
    4,459.58x = 23,322,593.10
  5. Step 5: Solve for x
    x = 23,322,593.10/4,459.58
  6. Step 6: Final answer
    x = 5,229.77

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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.