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Finding the Fourth Proportional to 35,866.19, 53,777.42 and 13,655.84

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Solution

The fourth proportional to 35,866.19, 53,777.42 and 13,655.84 is: 20,475.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,866.19 : 53,777.42 = 13,655.84 : x
  2. Step 2: Convert to fraction form
    35,866.19/53,777.42 = 13,655.84/x
  3. Step 3: Cross multiply
    35,866.19x = 53,777.42 × 13,655.84
  4. Step 4: Simplify right side
    35,866.19x = 734,375,859.67
  5. Step 5: Solve for x
    x = 734,375,859.67/35,866.19
  6. Step 6: Final answer
    x = 20,475.43

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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.