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Finding the Fourth Proportional to 35,720.49, 49,295.49 and 19,803.99

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Solution

The fourth proportional to 35,720.49, 49,295.49 and 19,803.99 is: 27,330.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,720.49 : 49,295.49 = 19,803.99 : x
  2. Step 2: Convert to fraction form
    35,720.49/49,295.49 = 19,803.99/x
  3. Step 3: Cross multiply
    35,720.49x = 49,295.49 × 19,803.99
  4. Step 4: Simplify right side
    35,720.49x = 976,247,391.01
  5. Step 5: Solve for x
    x = 976,247,391.01/35,720.49
  6. Step 6: Final answer
    x = 27,330.18

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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.