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Finding the Fourth Proportional to 8,887.16, 13,319.54 and 4,505.72

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Solution

The fourth proportional to 8,887.16, 13,319.54 and 4,505.72 is: 6,752.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,887.16 : 13,319.54 = 4,505.72 : x
  2. Step 2: Convert to fraction form
    8,887.16/13,319.54 = 4,505.72/x
  3. Step 3: Cross multiply
    8,887.16x = 13,319.54 × 4,505.72
  4. Step 4: Simplify right side
    8,887.16x = 60,014,117.77
  5. Step 5: Solve for x
    x = 60,014,117.77/8,887.16
  6. Step 6: Final answer
    x = 6,752.90

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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.