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Finding the Fourth Proportional to 29,338.56, 40,486.50 and 16,762.50

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Solution

The fourth proportional to 29,338.56, 40,486.50 and 16,762.50 is: 23,131.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,338.56 : 40,486.50 = 16,762.50 : x
  2. Step 2: Convert to fraction form
    29,338.56/40,486.50 = 16,762.50/x
  3. Step 3: Cross multiply
    29,338.56x = 40,486.50 × 16,762.50
  4. Step 4: Simplify right side
    29,338.56x = 678,654,956.25
  5. Step 5: Solve for x
    x = 678,654,956.25/29,338.56
  6. Step 6: Final answer
    x = 23,131.84

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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.