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Finding the Fourth Proportional to 57,297.87, 79,069.83 and 31,802.75

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Solution

The fourth proportional to 57,297.87, 79,069.83 and 31,802.75 is: 43,887.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,297.87 : 79,069.83 = 31,802.75 : x
  2. Step 2: Convert to fraction form
    57,297.87/79,069.83 = 31,802.75/x
  3. Step 3: Cross multiply
    57,297.87x = 79,069.83 × 31,802.75
  4. Step 4: Simplify right side
    57,297.87x = 2,514,638,036.03
  5. Step 5: Solve for x
    x = 2,514,638,036.03/57,297.87
  6. Step 6: Final answer
    x = 43,887.11

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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.