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Finding the Fourth Proportional to 57,329.78, 79,113.56 and 31,835.48

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Solution

The fourth proportional to 57,329.78, 79,113.56 and 31,835.48 is: 43,932.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,329.78 : 79,113.56 = 31,835.48 : x
  2. Step 2: Convert to fraction form
    57,329.78/79,113.56 = 31,835.48/x
  3. Step 3: Cross multiply
    57,329.78x = 79,113.56 × 31,835.48
  4. Step 4: Simplify right side
    57,329.78x = 2,518,617,602.36
  5. Step 5: Solve for x
    x = 2,518,617,602.36/57,329.78
  6. Step 6: Final answer
    x = 43,932.10

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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.