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Finding the Fourth Proportional to 64,457.06, 88,956.10 and 35,779.42

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Solution

The fourth proportional to 64,457.06, 88,956.10 and 35,779.42 is: 49,378.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,457.06 : 88,956.10 = 35,779.42 : x
  2. Step 2: Convert to fraction form
    64,457.06/88,956.10 = 35,779.42/x
  3. Step 3: Cross multiply
    64,457.06x = 88,956.10 × 35,779.42
  4. Step 4: Simplify right side
    64,457.06x = 3,182,797,218.68
  5. Step 5: Solve for x
    x = 3,182,797,218.68/64,457.06
  6. Step 6: Final answer
    x = 49,378.57

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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.