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Finding the Fourth Proportional to 63,220.77, 94,830.21 and 18,847.71

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Solution

The fourth proportional to 63,220.77, 94,830.21 and 18,847.71 is: 28,271.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,220.77 : 94,830.21 = 18,847.71 : x
  2. Step 2: Convert to fraction form
    63,220.77/94,830.21 = 18,847.71/x
  3. Step 3: Cross multiply
    63,220.77x = 94,830.21 × 18,847.71
  4. Step 4: Simplify right side
    63,220.77x = 1,787,332,297.32
  5. Step 5: Solve for x
    x = 1,787,332,297.32/63,220.77
  6. Step 6: Final answer
    x = 28,271.28

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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.