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Finding the Fourth Proportional to 39,230.80, 58,824.60 and 15,830.80

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Solution

The fourth proportional to 39,230.80, 58,824.60 and 15,830.80 is: 23,737.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,230.80 : 58,824.60 = 15,830.80 : x
  2. Step 2: Convert to fraction form
    39,230.80/58,824.60 = 15,830.80/x
  3. Step 3: Cross multiply
    39,230.80x = 58,824.60 × 15,830.80
  4. Step 4: Simplify right side
    39,230.80x = 931,240,477.68
  5. Step 5: Solve for x
    x = 931,240,477.68/39,230.80
  6. Step 6: Final answer
    x = 23,737.48

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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.