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Finding the Fourth Proportional to 8,616.99, 12,925.54 and 4,719.27

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Solution

The fourth proportional to 8,616.99, 12,925.54 and 4,719.27 is: 7,078.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,616.99 : 12,925.54 = 4,719.27 : x
  2. Step 2: Convert to fraction form
    8,616.99/12,925.54 = 4,719.27/x
  3. Step 3: Cross multiply
    8,616.99x = 12,925.54 × 4,719.27
  4. Step 4: Simplify right side
    8,616.99x = 60,999,113.16
  5. Step 5: Solve for x
    x = 60,999,113.16/8,616.99
  6. Step 6: Final answer
    x = 7,078.94

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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.