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Finding the Fourth Proportional to 65,505.66, 90,400.23 and 37,216.14

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Solution

The fourth proportional to 65,505.66, 90,400.23 and 37,216.14 is: 51,359.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,505.66 : 90,400.23 = 37,216.14 : x
  2. Step 2: Convert to fraction form
    65,505.66/90,400.23 = 37,216.14/x
  3. Step 3: Cross multiply
    65,505.66x = 90,400.23 × 37,216.14
  4. Step 4: Simplify right side
    65,505.66x = 3,364,347,615.71
  5. Step 5: Solve for x
    x = 3,364,347,615.71/65,505.66
  6. Step 6: Final answer
    x = 51,359.65

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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.