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Finding the Fourth Proportional to 65,990.48, 91,045.44 and 37,307.36

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Solution

The fourth proportional to 65,990.48, 91,045.44 and 37,307.36 is: 51,472.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,990.48 : 91,045.44 = 37,307.36 : x
  2. Step 2: Convert to fraction form
    65,990.48/91,045.44 = 37,307.36/x
  3. Step 3: Cross multiply
    65,990.48x = 91,045.44 × 37,307.36
  4. Step 4: Simplify right side
    65,990.48x = 3,396,665,006.44
  5. Step 5: Solve for x
    x = 3,396,665,006.44/65,990.48
  6. Step 6: Final answer
    x = 51,472.05

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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.