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Finding the Fourth Proportional to 30,692.55, 42,398.73 and 23,708.73

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Solution

The fourth proportional to 30,692.55, 42,398.73 and 23,708.73 is: 32,751.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,692.55 : 42,398.73 = 23,708.73 : x
  2. Step 2: Convert to fraction form
    30,692.55/42,398.73 = 23,708.73/x
  3. Step 3: Cross multiply
    30,692.55x = 42,398.73 × 23,708.73
  4. Step 4: Simplify right side
    30,692.55x = 1,005,220,041.91
  5. Step 5: Solve for x
    x = 1,005,220,041.91/30,692.55
  6. Step 6: Final answer
    x = 32,751.27

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.