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Finding the Fourth Proportional to 66,294.48, 91,465.74 and 37,609.38

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Solution

The fourth proportional to 66,294.48, 91,465.74 and 37,609.38 is: 51,889.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,294.48 : 91,465.74 = 37,609.38 : x
  2. Step 2: Convert to fraction form
    66,294.48/91,465.74 = 37,609.38/x
  3. Step 3: Cross multiply
    66,294.48x = 91,465.74 × 37,609.38
  4. Step 4: Simplify right side
    66,294.48x = 3,439,969,772.64
  5. Step 5: Solve for x
    x = 3,439,969,772.64/66,294.48
  6. Step 6: Final answer
    x = 51,889.23

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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.