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Finding the Fourth Proportional to 59,906.88, 89,860.32 and 20,464.33

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Solution

The fourth proportional to 59,906.88, 89,860.32 and 20,464.33 is: 30,696.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    59,906.88 : 89,860.32 = 20,464.33 : x
  2. Step 2: Convert to fraction form
    59,906.88/89,860.32 = 20,464.33/x
  3. Step 3: Cross multiply
    59,906.88x = 89,860.32 × 20,464.33
  4. Step 4: Simplify right side
    59,906.88x = 1,838,931,242.39
  5. Step 5: Solve for x
    x = 1,838,931,242.39/59,906.88
  6. Step 6: Final answer
    x = 30,696.50

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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.