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Finding the Fourth Proportional to 65,476.62, 90,357.75 and 37,186.62

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Solution

The fourth proportional to 65,476.62, 90,357.75 and 37,186.62 is: 51,317.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,476.62 : 90,357.75 = 37,186.62 : x
  2. Step 2: Convert to fraction form
    65,476.62/90,357.75 = 37,186.62/x
  3. Step 3: Cross multiply
    65,476.62x = 90,357.75 × 37,186.62
  4. Step 4: Simplify right side
    65,476.62x = 3,360,099,313.31
  5. Step 5: Solve for x
    x = 3,360,099,313.31/65,476.62
  6. Step 6: Final answer
    x = 51,317.54

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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.