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Finding the Fourth Proportional to 65,807.60, 90,814.20 and 35,592.96

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Solution

The fourth proportional to 65,807.60, 90,814.20 and 35,592.96 is: 49,118.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,807.60 : 90,814.20 = 35,592.96 : x
  2. Step 2: Convert to fraction form
    65,807.60/90,814.20 = 35,592.96/x
  3. Step 3: Cross multiply
    65,807.60x = 90,814.20 × 35,592.96
  4. Step 4: Simplify right side
    65,807.60x = 3,232,346,188.03
  5. Step 5: Solve for x
    x = 3,232,346,188.03/65,807.60
  6. Step 6: Final answer
    x = 49,118.13

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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.