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Finding the Fourth Proportional to 66,492.96, 99,655.20 and 27,027.60

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Solution

The fourth proportional to 66,492.96, 99,655.20 and 27,027.60 is: 40,507.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,492.96 : 99,655.20 = 27,027.60 : x
  2. Step 2: Convert to fraction form
    66,492.96/99,655.20 = 27,027.60/x
  3. Step 3: Cross multiply
    66,492.96x = 99,655.20 × 27,027.60
  4. Step 4: Simplify right side
    66,492.96x = 2,693,440,883.52
  5. Step 5: Solve for x
    x = 2,693,440,883.52/66,492.96
  6. Step 6: Final answer
    x = 40,507.16

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Why These Related Problems?

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