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Finding the Fourth Proportional to 65,614.76, 98,415.90 and 26,161.32

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Solution

The fourth proportional to 65,614.76, 98,415.90 and 26,161.32 is: 39,239.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,614.76 : 98,415.90 = 26,161.32 : x
  2. Step 2: Convert to fraction form
    65,614.76/98,415.90 = 26,161.32/x
  3. Step 3: Cross multiply
    65,614.76x = 98,415.90 × 26,161.32
  4. Step 4: Simplify right side
    65,614.76x = 2,574,689,852.99
  5. Step 5: Solve for x
    x = 2,574,689,852.99/65,614.76
  6. Step 6: Final answer
    x = 39,239.49

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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.