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Finding the Fourth Proportional to 65,420.95, 98,064.11 and 26,005.99

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Solution

The fourth proportional to 65,420.95, 98,064.11 and 26,005.99 is: 38,982.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,420.95 : 98,064.11 = 26,005.99 : x
  2. Step 2: Convert to fraction form
    65,420.95/98,064.11 = 26,005.99/x
  3. Step 3: Cross multiply
    65,420.95x = 98,064.11 × 26,005.99
  4. Step 4: Simplify right side
    65,420.95x = 2,550,254,133.99
  5. Step 5: Solve for x
    x = 2,550,254,133.99/65,420.95
  6. Step 6: Final answer
    x = 38,982.22

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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.