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Finding the Fourth Proportional to 65,309.16, 90,147.15 and 37,033.68

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Solution

The fourth proportional to 65,309.16, 90,147.15 and 37,033.68 is: 51,118.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,309.16 : 90,147.15 = 37,033.68 : x
  2. Step 2: Convert to fraction form
    65,309.16/90,147.15 = 37,033.68/x
  3. Step 3: Cross multiply
    65,309.16x = 90,147.15 × 37,033.68
  4. Step 4: Simplify right side
    65,309.16x = 3,338,480,706.01
  5. Step 5: Solve for x
    x = 3,338,480,706.01/65,309.16
  6. Step 6: Final answer
    x = 51,118.11

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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.