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Finding the Fourth Proportional to 48,396.96, 72,581.64 and 20,323.34

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Solution

The fourth proportional to 48,396.96, 72,581.64 and 20,323.34 is: 30,479.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,396.96 : 72,581.64 = 20,323.34 : x
  2. Step 2: Convert to fraction form
    48,396.96/72,581.64 = 20,323.34/x
  3. Step 3: Cross multiply
    48,396.96x = 72,581.64 × 20,323.34
  4. Step 4: Simplify right side
    48,396.96x = 1,475,101,347.48
  5. Step 5: Solve for x
    x = 1,475,101,347.48/48,396.96
  6. Step 6: Final answer
    x = 30,479.21

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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.