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Finding the Fourth Proportional to 8,501.95, 12,739.93 and 5,718.32

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Solution

The fourth proportional to 8,501.95, 12,739.93 and 5,718.32 is: 8,568.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,501.95 : 12,739.93 = 5,718.32 : x
  2. Step 2: Convert to fraction form
    8,501.95/12,739.93 = 5,718.32/x
  3. Step 3: Cross multiply
    8,501.95x = 12,739.93 × 5,718.32
  4. Step 4: Simplify right side
    8,501.95x = 72,850,996.52
  5. Step 5: Solve for x
    x = 72,850,996.52/8,501.95
  6. Step 6: Final answer
    x = 8,568.74

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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.