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Finding the Fourth Proportional to 64,072.58, 88,411.92 and 35,779.46

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Solution

The fourth proportional to 64,072.58, 88,411.92 and 35,779.46 is: 49,371.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,072.58 : 88,411.92 = 35,779.46 : x
  2. Step 2: Convert to fraction form
    64,072.58/88,411.92 = 35,779.46/x
  3. Step 3: Cross multiply
    64,072.58x = 88,411.92 × 35,779.46
  4. Step 4: Simplify right side
    64,072.58x = 3,163,330,755.16
  5. Step 5: Solve for x
    x = 3,163,330,755.16/64,072.58
  6. Step 6: Final answer
    x = 49,371.05

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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.