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Finding the Fourth Proportional to 65,352.98, 90,187.16 and 36,668.69

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Solution

The fourth proportional to 65,352.98, 90,187.16 and 36,668.69 is: 50,602.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,352.98 : 90,187.16 = 36,668.69 : x
  2. Step 2: Convert to fraction form
    65,352.98/90,187.16 = 36,668.69/x
  3. Step 3: Cross multiply
    65,352.98x = 90,187.16 × 36,668.69
  4. Step 4: Simplify right side
    65,352.98x = 3,307,044,377.74
  5. Step 5: Solve for x
    x = 3,307,044,377.74/65,352.98
  6. Step 6: Final answer
    x = 50,602.81

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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.