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Finding the Fourth Proportional to 73,085.95, 109,672.65 and 31,532.95

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Solution

The fourth proportional to 73,085.95, 109,672.65 and 31,532.95 is: 47,318.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,085.95 : 109,672.65 = 31,532.95 : x
  2. Step 2: Convert to fraction form
    73,085.95/109,672.65 = 31,532.95/x
  3. Step 3: Cross multiply
    73,085.95x = 109,672.65 × 31,532.95
  4. Step 4: Simplify right side
    73,085.95x = 3,458,301,709.00
  5. Step 5: Solve for x
    x = 3,458,301,709.00/73,085.95
  6. Step 6: Final answer
    x = 47,318.29

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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.