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Finding the Fourth Proportional to 53,907.48, 80,860.80 and 13,926.36

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Solution

The fourth proportional to 53,907.48, 80,860.80 and 13,926.36 is: 20,889.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,907.48 : 80,860.80 = 13,926.36 : x
  2. Step 2: Convert to fraction form
    53,907.48/80,860.80 = 13,926.36/x
  3. Step 3: Cross multiply
    53,907.48x = 80,860.80 × 13,926.36
  4. Step 4: Simplify right side
    53,907.48x = 1,126,096,610.69
  5. Step 5: Solve for x
    x = 1,126,096,610.69/53,907.48
  6. Step 6: Final answer
    x = 20,889.43

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1.5x scale

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.