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Finding the Fourth Proportional to 66,588.82, 91,888.50 and 36,368.02

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Solution

The fourth proportional to 66,588.82, 91,888.50 and 36,368.02 is: 50,185.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,588.82 : 91,888.50 = 36,368.02 : x
  2. Step 2: Convert to fraction form
    66,588.82/91,888.50 = 36,368.02/x
  3. Step 3: Cross multiply
    66,588.82x = 91,888.50 × 36,368.02
  4. Step 4: Simplify right side
    66,588.82x = 3,341,802,805.77
  5. Step 5: Solve for x
    x = 3,341,802,805.77/66,588.82
  6. Step 6: Final answer
    x = 50,185.64

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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.