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Finding the Fourth Proportional to 66,238.41, 91,413 and 37,559.28

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Solution

The fourth proportional to 66,238.41, 91,413 and 37,559.28 is: 51,834.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,238.41 : 91,413 = 37,559.28 : x
  2. Step 2: Convert to fraction form
    66,238.41/91,413 = 37,559.28/x
  3. Step 3: Cross multiply
    66,238.41x = 91,413 × 37,559.28
  4. Step 4: Simplify right side
    66,238.41x = 3,433,406,462.64
  5. Step 5: Solve for x
    x = 3,433,406,462.64/66,238.41
  6. Step 6: Final answer
    x = 51,834.07

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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.