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Finding the Fourth Proportional to 66,362.80, 91,579.08 and 38,066.62

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Solution

The fourth proportional to 66,362.80, 91,579.08 and 38,066.62 is: 52,531.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,362.80 : 91,579.08 = 38,066.62 : x
  2. Step 2: Convert to fraction form
    66,362.80/91,579.08 = 38,066.62/x
  3. Step 3: Cross multiply
    66,362.80x = 91,579.08 × 38,066.62
  4. Step 4: Simplify right side
    66,362.80x = 3,486,106,038.31
  5. Step 5: Solve for x
    x = 3,486,106,038.31/66,362.80
  6. Step 6: Final answer
    x = 52,531.03

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.