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Finding the Fourth Proportional to 59,892.75, 89,859.85 and 20,477.61

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Solution

The fourth proportional to 59,892.75, 89,859.85 and 20,477.61 is: 30,723.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    59,892.75 : 89,859.85 = 20,477.61 : x
  2. Step 2: Convert to fraction form
    59,892.75/89,859.85 = 20,477.61/x
  3. Step 3: Cross multiply
    59,892.75x = 89,859.85 × 20,477.61
  4. Step 4: Simplify right side
    59,892.75x = 1,840,114,911.76
  5. Step 5: Solve for x
    x = 1,840,114,911.76/59,892.75
  6. Step 6: Final answer
    x = 30,723.50

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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.