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Finding the Fourth Proportional to 28,002.34, 42,004.32 and 10,468.82

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Solution

The fourth proportional to 28,002.34, 42,004.32 and 10,468.82 is: 15,703.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,002.34 : 42,004.32 = 10,468.82 : x
  2. Step 2: Convert to fraction form
    28,002.34/42,004.32 = 10,468.82/x
  3. Step 3: Cross multiply
    28,002.34x = 42,004.32 × 10,468.82
  4. Step 4: Simplify right side
    28,002.34x = 439,735,665.30
  5. Step 5: Solve for x
    x = 439,735,665.30/28,002.34
  6. Step 6: Final answer
    x = 15,703.53

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