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Finding the Fourth Proportional to 66,024.16, 91,112 and 37,343.28

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Solution

The fourth proportional to 66,024.16, 91,112 and 37,343.28 is: 51,532.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,024.16 : 91,112 = 37,343.28 : x
  2. Step 2: Convert to fraction form
    66,024.16/91,112 = 37,343.28/x
  3. Step 3: Cross multiply
    66,024.16x = 91,112 × 37,343.28
  4. Step 4: Simplify right side
    66,024.16x = 3,402,420,927.36
  5. Step 5: Solve for x
    x = 3,402,420,927.36/66,024.16
  6. Step 6: Final answer
    x = 51,532.97

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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.