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Finding the Fourth Proportional to 56,674.01, 78,209.92 and 31,523.51

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Solution

The fourth proportional to 56,674.01, 78,209.92 and 31,523.51 is: 43,502.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,674.01 : 78,209.92 = 31,523.51 : x
  2. Step 2: Convert to fraction form
    56,674.01/78,209.92 = 31,523.51/x
  3. Step 3: Cross multiply
    56,674.01x = 78,209.92 × 31,523.51
  4. Step 4: Simplify right side
    56,674.01x = 2,465,451,195.22
  5. Step 5: Solve for x
    x = 2,465,451,195.22/56,674.01
  6. Step 6: Final answer
    x = 43,502.32

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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.