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Finding the Fourth Proportional to 48,656.70, 72,944.49 and 20,598.30

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Solution

The fourth proportional to 48,656.70, 72,944.49 and 20,598.30 is: 30,880.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,656.70 : 72,944.49 = 20,598.30 : x
  2. Step 2: Convert to fraction form
    48,656.70/72,944.49 = 20,598.30/x
  3. Step 3: Cross multiply
    48,656.70x = 72,944.49 × 20,598.30
  4. Step 4: Simplify right side
    48,656.70x = 1,502,532,488.37
  5. Step 5: Solve for x
    x = 1,502,532,488.37/48,656.70
  6. Step 6: Final answer
    x = 30,880.28

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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.