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Finding the Fourth Proportional to 66,264.48, 91,447.50 and 37,975.64

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Solution

The fourth proportional to 66,264.48, 91,447.50 and 37,975.64 is: 52,407.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,264.48 : 91,447.50 = 37,975.64 : x
  2. Step 2: Convert to fraction form
    66,264.48/91,447.50 = 37,975.64/x
  3. Step 3: Cross multiply
    66,264.48x = 91,447.50 × 37,975.64
  4. Step 4: Simplify right side
    66,264.48x = 3,472,776,881.66
  5. Step 5: Solve for x
    x = 3,472,776,881.66/66,264.48
  6. Step 6: Final answer
    x = 52,407.82

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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.