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Finding the Fourth Proportional to 48,420.56, 72,594.84 and 20,348.84

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Solution

The fourth proportional to 48,420.56, 72,594.84 and 20,348.84 is: 30,508.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,420.56 : 72,594.84 = 20,348.84 : x
  2. Step 2: Convert to fraction form
    48,420.56/72,594.84 = 20,348.84/x
  3. Step 3: Cross multiply
    48,420.56x = 72,594.84 × 20,348.84
  4. Step 4: Simplify right side
    48,420.56x = 1,477,220,783.99
  5. Step 5: Solve for x
    x = 1,477,220,783.99/48,420.56
  6. Step 6: Final answer
    x = 30,508.13

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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.