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Finding the Fourth Proportional to 59,748.60, 89,622.90 and 20,350.20

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Solution

The fourth proportional to 59,748.60, 89,622.90 and 20,350.20 is: 30,525.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    59,748.60 : 89,622.90 = 20,350.20 : x
  2. Step 2: Convert to fraction form
    59,748.60/89,622.90 = 20,350.20/x
  3. Step 3: Cross multiply
    59,748.60x = 89,622.90 × 20,350.20
  4. Step 4: Simplify right side
    59,748.60x = 1,823,843,939.58
  5. Step 5: Solve for x
    x = 1,823,843,939.58/59,748.60
  6. Step 6: Final answer
    x = 30,525.30

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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.