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Finding the Fourth Proportional to 76,881.74, 115,339.31 and 23,573.91

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Solution

The fourth proportional to 76,881.74, 115,339.31 and 23,573.91 is: 35,365.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,881.74 : 115,339.31 = 23,573.91 : x
  2. Step 2: Convert to fraction form
    76,881.74/115,339.31 = 23,573.91/x
  3. Step 3: Cross multiply
    76,881.74x = 115,339.31 × 23,573.91
  4. Step 4: Simplify right side
    76,881.74x = 2,718,998,916.46
  5. Step 5: Solve for x
    x = 2,718,998,916.46/76,881.74
  6. Step 6: Final answer
    x = 35,365.99

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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.