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Finding the Fourth Proportional to 8,875.72, 12,244.62 and 5,336.90

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Solution

The fourth proportional to 8,875.72, 12,244.62 and 5,336.90 is: 7,362.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,875.72 : 12,244.62 = 5,336.90 : x
  2. Step 2: Convert to fraction form
    8,875.72/12,244.62 = 5,336.90/x
  3. Step 3: Cross multiply
    8,875.72x = 12,244.62 × 5,336.90
  4. Step 4: Simplify right side
    8,875.72x = 65,348,312.48
  5. Step 5: Solve for x
    x = 65,348,312.48/8,875.72
  6. Step 6: Final answer
    x = 7,362.59

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.