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Finding the Fourth Proportional to 54,707.77, 75,502.72 and 31,742.63

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Solution

The fourth proportional to 54,707.77, 75,502.72 and 31,742.63 is: 43,808.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,707.77 : 75,502.72 = 31,742.63 : x
  2. Step 2: Convert to fraction form
    54,707.77/75,502.72 = 31,742.63/x
  3. Step 3: Cross multiply
    54,707.77x = 75,502.72 × 31,742.63
  4. Step 4: Simplify right side
    54,707.77x = 2,396,655,096.40
  5. Step 5: Solve for x
    x = 2,396,655,096.40/54,707.77
  6. Step 6: Final answer
    x = 43,808.31

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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.