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Finding the Fourth Proportional to 59,809.79, 89,728.58 and 20,367.24

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Solution

The fourth proportional to 59,809.79, 89,728.58 and 20,367.24 is: 30,555.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    59,809.79 : 89,728.58 = 20,367.24 : x
  2. Step 2: Convert to fraction form
    59,809.79/89,728.58 = 20,367.24/x
  3. Step 3: Cross multiply
    59,809.79x = 89,728.58 × 20,367.24
  4. Step 4: Simplify right side
    59,809.79x = 1,827,523,421.88
  5. Step 5: Solve for x
    x = 1,827,523,421.88/59,809.79
  6. Step 6: Final answer
    x = 30,555.59

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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.