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Finding the Fourth Proportional to 66,054.69, 91,155.44 and 37,760.99

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Solution

The fourth proportional to 66,054.69, 91,155.44 and 37,760.99 is: 52,110.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,054.69 : 91,155.44 = 37,760.99 : x
  2. Step 2: Convert to fraction form
    66,054.69/91,155.44 = 37,760.99/x
  3. Step 3: Cross multiply
    66,054.69x = 91,155.44 × 37,760.99
  4. Step 4: Simplify right side
    66,054.69x = 3,442,119,296.91
  5. Step 5: Solve for x
    x = 3,442,119,296.91/66,054.69
  6. Step 6: Final answer
    x = 52,110.14

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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.