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Finding the Fourth Proportional to 65,698.66, 90,664.24 and 37,404.35

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Solution

The fourth proportional to 65,698.66, 90,664.24 and 37,404.35 is: 51,618.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,698.66 : 90,664.24 = 37,404.35 : x
  2. Step 2: Convert to fraction form
    65,698.66/90,664.24 = 37,404.35/x
  3. Step 3: Cross multiply
    65,698.66x = 90,664.24 × 37,404.35
  4. Step 4: Simplify right side
    65,698.66x = 3,391,236,418.61
  5. Step 5: Solve for x
    x = 3,391,236,418.61/65,698.66
  6. Step 6: Final answer
    x = 51,618.05

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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.