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Finding the Fourth Proportional to 66,477.51, 91,737.36 and 38,185.02

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Solution

The fourth proportional to 66,477.51, 91,737.36 and 38,185.02 is: 52,694.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,477.51 : 91,737.36 = 38,185.02 : x
  2. Step 2: Convert to fraction form
    66,477.51/91,737.36 = 38,185.02/x
  3. Step 3: Cross multiply
    66,477.51x = 91,737.36 × 38,185.02
  4. Step 4: Simplify right side
    66,477.51x = 3,502,992,926.35
  5. Step 5: Solve for x
    x = 3,502,992,926.35/66,477.51
  6. Step 6: Final answer
    x = 52,694.41

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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.