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Finding the Fourth Proportional to 30,307.60, 41,822.84 and 16,692.99

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Solution

The fourth proportional to 30,307.60, 41,822.84 and 16,692.99 is: 23,035.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,307.60 : 41,822.84 = 16,692.99 : x
  2. Step 2: Convert to fraction form
    30,307.60/41,822.84 = 16,692.99/x
  3. Step 3: Cross multiply
    30,307.60x = 41,822.84 × 16,692.99
  4. Step 4: Simplify right side
    30,307.60x = 698,148,479.76
  5. Step 5: Solve for x
    x = 698,148,479.76/30,307.60
  6. Step 6: Final answer
    x = 23,035.43

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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.