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Finding the Fourth Proportional to 57,265.79, 79,027.22 and 31,424.16

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Solution

The fourth proportional to 57,265.79, 79,027.22 and 31,424.16 is: 43,365.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,265.79 : 79,027.22 = 31,424.16 : x
  2. Step 2: Convert to fraction form
    57,265.79/79,027.22 = 31,424.16/x
  3. Step 3: Cross multiply
    57,265.79x = 79,027.22 × 31,424.16
  4. Step 4: Simplify right side
    57,265.79x = 2,483,363,848.51
  5. Step 5: Solve for x
    x = 2,483,363,848.51/57,265.79
  6. Step 6: Final answer
    x = 43,365.58

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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.