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Finding the Fourth Proportional to 65,392.19, 98,089.19 and 18,645.06

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Solution

The fourth proportional to 65,392.19, 98,089.19 and 18,645.06 is: 27,967.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,392.19 : 98,089.19 = 18,645.06 : x
  2. Step 2: Convert to fraction form
    65,392.19/98,089.19 = 18,645.06/x
  3. Step 3: Cross multiply
    65,392.19x = 98,089.19 × 18,645.06
  4. Step 4: Simplify right side
    65,392.19x = 1,828,878,832.90
  5. Step 5: Solve for x
    x = 1,828,878,832.90/65,392.19
  6. Step 6: Final answer
    x = 27,967.85

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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.