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Finding the Fourth Proportional to 64,457.69, 88,956.96 and 35,780.04

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Solution

The fourth proportional to 64,457.69, 88,956.96 and 35,780.04 is: 49,379.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,457.69 : 88,956.96 = 35,780.04 : x
  2. Step 2: Convert to fraction form
    64,457.69/88,956.96 = 35,780.04/x
  3. Step 3: Cross multiply
    64,457.69x = 88,956.96 × 35,780.04
  4. Step 4: Simplify right side
    64,457.69x = 3,182,883,587.08
  5. Step 5: Solve for x
    x = 3,182,883,587.08/64,457.69
  6. Step 6: Final answer
    x = 49,379.43

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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.