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Finding the Fourth Proportional to 32,776.75, 45,230.12 and 19,343.10

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Solution

The fourth proportional to 32,776.75, 45,230.12 and 19,343.10 is: 26,692.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,776.75 : 45,230.12 = 19,343.10 : x
  2. Step 2: Convert to fraction form
    32,776.75/45,230.12 = 19,343.10/x
  3. Step 3: Cross multiply
    32,776.75x = 45,230.12 × 19,343.10
  4. Step 4: Simplify right side
    32,776.75x = 874,890,934.01
  5. Step 5: Solve for x
    x = 874,890,934.01/32,776.75
  6. Step 6: Final answer
    x = 26,692.42

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Double scale
Find fourth proportional to 32,777.75, 45,231.50 and 19,344.10
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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.