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Finding the Fourth Proportional to 27,060, 40,602.16 and 17,196.72

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Solution

The fourth proportional to 27,060, 40,602.16 and 17,196.72 is: 25,802.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,060 : 40,602.16 = 17,196.72 : x
  2. Step 2: Convert to fraction form
    27,060/40,602.16 = 17,196.72/x
  3. Step 3: Cross multiply
    27,060x = 40,602.16 × 17,196.72
  4. Step 4: Simplify right side
    27,060x = 698,223,976.92
  5. Step 5: Solve for x
    x = 698,223,976.92/27,060
  6. Step 6: Final answer
    x = 25,802.81

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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.