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Finding the Fourth Proportional to 38,937.99, 53,734.46 and 21,033.02

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Solution

The fourth proportional to 38,937.99, 53,734.46 and 21,033.02 is: 29,025.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,937.99 : 53,734.46 = 21,033.02 : x
  2. Step 2: Convert to fraction form
    38,937.99/53,734.46 = 21,033.02/x
  3. Step 3: Cross multiply
    38,937.99x = 53,734.46 × 21,033.02
  4. Step 4: Simplify right side
    38,937.99x = 1,130,197,755.78
  5. Step 5: Solve for x
    x = 1,130,197,755.78/38,937.99
  6. Step 6: Final answer
    x = 29,025.58

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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.