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Finding the Fourth Proportional to 53,866.96, 74,331.48 and 39,727.60

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Solution

The fourth proportional to 53,866.96, 74,331.48 and 39,727.60 is: 54,820.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,866.96 : 74,331.48 = 39,727.60 : x
  2. Step 2: Convert to fraction form
    53,866.96/74,331.48 = 39,727.60/x
  3. Step 3: Cross multiply
    53,866.96x = 74,331.48 × 39,727.60
  4. Step 4: Simplify right side
    53,866.96x = 2,953,011,304.85
  5. Step 5: Solve for x
    x = 2,953,011,304.85/53,866.96
  6. Step 6: Final answer
    x = 54,820.46

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.