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Finding the Fourth Proportional to 64,802.72, 97,209.48 and 18,055.28

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Solution

The fourth proportional to 64,802.72, 97,209.48 and 18,055.28 is: 27,084.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,802.72 : 97,209.48 = 18,055.28 : x
  2. Step 2: Convert to fraction form
    64,802.72/97,209.48 = 18,055.28/x
  3. Step 3: Cross multiply
    64,802.72x = 97,209.48 × 18,055.28
  4. Step 4: Simplify right side
    64,802.72x = 1,755,144,380.05
  5. Step 5: Solve for x
    x = 1,755,144,380.05/64,802.72
  6. Step 6: Final answer
    x = 27,084.42

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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.