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Finding the Fourth Proportional to 66,053.76, 91,153.44 and 35,838.96

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Solution

The fourth proportional to 66,053.76, 91,153.44 and 35,838.96 is: 49,457.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,053.76 : 91,153.44 = 35,838.96 : x
  2. Step 2: Convert to fraction form
    66,053.76/91,153.44 = 35,838.96/x
  3. Step 3: Cross multiply
    66,053.76x = 91,153.44 × 35,838.96
  4. Step 4: Simplify right side
    66,053.76x = 3,266,844,490.02
  5. Step 5: Solve for x
    x = 3,266,844,490.02/66,053.76
  6. Step 6: Final answer
    x = 49,457.36

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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.