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Finding the Fourth Proportional to 8,718.52, 13,056.76 and 5,009.48

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Solution

The fourth proportional to 8,718.52, 13,056.76 and 5,009.48 is: 7,502.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,718.52 : 13,056.76 = 5,009.48 : x
  2. Step 2: Convert to fraction form
    8,718.52/13,056.76 = 5,009.48/x
  3. Step 3: Cross multiply
    8,718.52x = 13,056.76 × 5,009.48
  4. Step 4: Simplify right side
    8,718.52x = 65,407,578.08
  5. Step 5: Solve for x
    x = 65,407,578.08/8,718.52
  6. Step 6: Final answer
    x = 7,502.14

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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.