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Finding the Fourth Proportional to 37,545.95, 51,824.95 and 21,640.99

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Solution

The fourth proportional to 37,545.95, 51,824.95 and 21,640.99 is: 29,871.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,545.95 : 51,824.95 = 21,640.99 : x
  2. Step 2: Convert to fraction form
    37,545.95/51,824.95 = 21,640.99/x
  3. Step 3: Cross multiply
    37,545.95x = 51,824.95 × 21,640.99
  4. Step 4: Simplify right side
    37,545.95x = 1,121,543,041.04
  5. Step 5: Solve for x
    x = 1,121,543,041.04/37,545.95
  6. Step 6: Final answer
    x = 29,871.21

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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.