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Finding the Fourth Proportional to 43,888.64, 65,679.84 and 35,898.80

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Solution

The fourth proportional to 43,888.64, 65,679.84 and 35,898.80 is: 53,722.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,888.64 : 65,679.84 = 35,898.80 : x
  2. Step 2: Convert to fraction form
    43,888.64/65,679.84 = 35,898.80/x
  3. Step 3: Cross multiply
    43,888.64x = 65,679.84 × 35,898.80
  4. Step 4: Simplify right side
    43,888.64x = 2,357,827,440.19
  5. Step 5: Solve for x
    x = 2,357,827,440.19/43,888.64
  6. Step 6: Final answer
    x = 53,722.96

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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.