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Finding the Fourth Proportional to 45,410, 68,066.52 and 21,985.04

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Solution

The fourth proportional to 45,410, 68,066.52 and 21,985.04 is: 32,954.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,410 : 68,066.52 = 21,985.04 : x
  2. Step 2: Convert to fraction form
    45,410/68,066.52 = 21,985.04/x
  3. Step 3: Cross multiply
    45,410x = 68,066.52 × 21,985.04
  4. Step 4: Simplify right side
    45,410x = 1,496,445,164.86
  5. Step 5: Solve for x
    x = 1,496,445,164.86/45,410
  6. Step 6: Final answer
    x = 32,954.09

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.