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Finding the Fourth Proportional to 57,398.36, 79,222.27 and 31,913.43

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Solution

The fourth proportional to 57,398.36, 79,222.27 and 31,913.43 is: 44,047.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,398.36 : 79,222.27 = 31,913.43 : x
  2. Step 2: Convert to fraction form
    57,398.36/79,222.27 = 31,913.43/x
  3. Step 3: Cross multiply
    57,398.36x = 79,222.27 × 31,913.43
  4. Step 4: Simplify right side
    57,398.36x = 2,528,254,368.09
  5. Step 5: Solve for x
    x = 2,528,254,368.09/57,398.36
  6. Step 6: Final answer
    x = 44,047.50

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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.