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Finding the Fourth Proportional to 57,297.92, 79,070.18 and 31,804.24

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Solution

The fourth proportional to 57,297.92, 79,070.18 and 31,804.24 is: 43,889.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,297.92 : 79,070.18 = 31,804.24 : x
  2. Step 2: Convert to fraction form
    57,297.92/79,070.18 = 31,804.24/x
  3. Step 3: Cross multiply
    57,297.92x = 79,070.18 × 31,804.24
  4. Step 4: Simplify right side
    57,297.92x = 2,514,766,981.56
  5. Step 5: Solve for x
    x = 2,514,766,981.56/57,297.92
  6. Step 6: Final answer
    x = 43,889.32

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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.