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Finding the Fourth Proportional to 37,578.92, 51,870.31 and 21,673.76

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Solution

The fourth proportional to 37,578.92, 51,870.31 and 21,673.76 is: 29,916.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,578.92 : 51,870.31 = 21,673.76 : x
  2. Step 2: Convert to fraction form
    37,578.92/51,870.31 = 21,673.76/x
  3. Step 3: Cross multiply
    37,578.92x = 51,870.31 × 21,673.76
  4. Step 4: Simplify right side
    37,578.92x = 1,124,224,336.53
  5. Step 5: Solve for x
    x = 1,124,224,336.53/37,578.92
  6. Step 6: Final answer
    x = 29,916.36

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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.