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Finding the Fourth Proportional to 65,779.92, 98,675.16 and 19,033.68

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Solution

The fourth proportional to 65,779.92, 98,675.16 and 19,033.68 is: 28,552.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,779.92 : 98,675.16 = 19,033.68 : x
  2. Step 2: Convert to fraction form
    65,779.92/98,675.16 = 19,033.68/x
  3. Step 3: Cross multiply
    65,779.92x = 98,675.16 × 19,033.68
  4. Step 4: Simplify right side
    65,779.92x = 1,878,151,419.39
  5. Step 5: Solve for x
    x = 1,878,151,419.39/65,779.92
  6. Step 6: Final answer
    x = 28,552.05

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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.