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Finding the Fourth Proportional to 19,592.87, 27,038.21 and 10,640.30

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Solution

The fourth proportional to 19,592.87, 27,038.21 and 10,640.30 is: 14,683.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,592.87 : 27,038.21 = 10,640.30 : x
  2. Step 2: Convert to fraction form
    19,592.87/27,038.21 = 10,640.30/x
  3. Step 3: Cross multiply
    19,592.87x = 27,038.21 × 10,640.30
  4. Step 4: Simplify right side
    19,592.87x = 287,694,477.47
  5. Step 5: Solve for x
    x = 287,694,477.47/19,592.87
  6. Step 6: Final answer
    x = 14,683.63

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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.