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Finding the Fourth Proportional to 65,758.48, 90,748.79 and 37,465.99

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Solution

The fourth proportional to 65,758.48, 90,748.79 and 37,465.99 is: 51,704.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,758.48 : 90,748.79 = 37,465.99 : x
  2. Step 2: Convert to fraction form
    65,758.48/90,748.79 = 37,465.99/x
  3. Step 3: Cross multiply
    65,758.48x = 90,748.79 × 37,465.99
  4. Step 4: Simplify right side
    65,758.48x = 3,399,992,984.95
  5. Step 5: Solve for x
    x = 3,399,992,984.95/65,758.48
  6. Step 6: Final answer
    x = 51,704.25

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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.