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Finding the Fourth Proportional to 65,387.86, 90,232.58 and 37,092.94

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Solution

The fourth proportional to 65,387.86, 90,232.58 and 37,092.94 is: 51,186.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,387.86 : 90,232.58 = 37,092.94 : x
  2. Step 2: Convert to fraction form
    65,387.86/90,232.58 = 37,092.94/x
  3. Step 3: Cross multiply
    65,387.86x = 90,232.58 × 37,092.94
  4. Step 4: Simplify right side
    65,387.86x = 3,346,991,675.99
  5. Step 5: Solve for x
    x = 3,346,991,675.99/65,387.86
  6. Step 6: Final answer
    x = 51,186.74

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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.