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Finding the Fourth Proportional to 29,309.67, 40,421.25 and 23,011.11

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Solution

The fourth proportional to 29,309.67, 40,421.25 and 23,011.11 is: 31,734.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,309.67 : 40,421.25 = 23,011.11 : x
  2. Step 2: Convert to fraction form
    29,309.67/40,421.25 = 23,011.11/x
  3. Step 3: Cross multiply
    29,309.67x = 40,421.25 × 23,011.11
  4. Step 4: Simplify right side
    29,309.67x = 930,137,830.09
  5. Step 5: Solve for x
    x = 930,137,830.09/29,309.67
  6. Step 6: Final answer
    x = 31,734.84

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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.