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Finding the Fourth Proportional to 74,332.63, 111,538.64 and 34,890.09

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Solution

The fourth proportional to 74,332.63, 111,538.64 and 34,890.09 is: 52,353.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,332.63 : 111,538.64 = 34,890.09 : x
  2. Step 2: Convert to fraction form
    74,332.63/111,538.64 = 34,890.09/x
  3. Step 3: Cross multiply
    74,332.63x = 111,538.64 × 34,890.09
  4. Step 4: Simplify right side
    74,332.63x = 3,891,593,188.08
  5. Step 5: Solve for x
    x = 3,891,593,188.08/74,332.63
  6. Step 6: Final answer
    x = 52,353.77

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.