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Finding the Fourth Proportional to 65,249.72, 90,043.10 and 38,024.07

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Solution

The fourth proportional to 65,249.72, 90,043.10 and 38,024.07 is: 52,472.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,249.72 : 90,043.10 = 38,024.07 : x
  2. Step 2: Convert to fraction form
    65,249.72/90,043.10 = 38,024.07/x
  3. Step 3: Cross multiply
    65,249.72x = 90,043.10 × 38,024.07
  4. Step 4: Simplify right side
    65,249.72x = 3,423,804,752.23
  5. Step 5: Solve for x
    x = 3,423,804,752.23/65,249.72
  6. Step 6: Final answer
    x = 52,472.33

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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.