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Finding the Fourth Proportional to 29,453.76, 44,187.47 and 15,421.42

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Solution

The fourth proportional to 29,453.76, 44,187.47 and 15,421.42 is: 23,135.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,453.76 : 44,187.47 = 15,421.42 : x
  2. Step 2: Convert to fraction form
    29,453.76/44,187.47 = 15,421.42/x
  3. Step 3: Cross multiply
    29,453.76x = 44,187.47 × 15,421.42
  4. Step 4: Simplify right side
    29,453.76x = 681,433,533.61
  5. Step 5: Solve for x
    x = 681,433,533.61/29,453.76
  6. Step 6: Final answer
    x = 23,135.71

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.