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Finding the Fourth Proportional to 66,292.96, 91,463.66 and 37,607.88

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Solution

The fourth proportional to 66,292.96, 91,463.66 and 37,607.88 is: 51,887.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,292.96 : 91,463.66 = 37,607.88 : x
  2. Step 2: Convert to fraction form
    66,292.96/91,463.66 = 37,607.88/x
  3. Step 3: Cross multiply
    66,292.96x = 91,463.66 × 37,607.88
  4. Step 4: Simplify right side
    66,292.96x = 3,439,754,349.64
  5. Step 5: Solve for x
    x = 3,439,754,349.64/66,292.96
  6. Step 6: Final answer
    x = 51,887.17

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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.