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Finding the Fourth Proportional to 65,195.93, 89,970.68 and 36,907.09

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Solution

The fourth proportional to 65,195.93, 89,970.68 and 36,907.09 is: 50,931.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,195.93 : 89,970.68 = 36,907.09 : x
  2. Step 2: Convert to fraction form
    65,195.93/89,970.68 = 36,907.09/x
  3. Step 3: Cross multiply
    65,195.93x = 89,970.68 × 36,907.09
  4. Step 4: Simplify right side
    65,195.93x = 3,320,555,984.12
  5. Step 5: Solve for x
    x = 3,320,555,984.12/65,195.93
  6. Step 6: Final answer
    x = 50,931.95

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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.