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Finding the Fourth Proportional to 28,397.93, 42,599.52 and 9,671.67

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Solution

The fourth proportional to 28,397.93, 42,599.52 and 9,671.67 is: 14,508.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,397.93 : 42,599.52 = 9,671.67 : x
  2. Step 2: Convert to fraction form
    28,397.93/42,599.52 = 9,671.67/x
  3. Step 3: Cross multiply
    28,397.93x = 42,599.52 × 9,671.67
  4. Step 4: Simplify right side
    28,397.93x = 412,008,499.60
  5. Step 5: Solve for x
    x = 412,008,499.60/28,397.93
  6. Step 6: Final answer
    x = 14,508.40

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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.