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Finding the Fourth Proportional to 65,287.69, 97,779.66 and 63,491.85

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Solution

The fourth proportional to 65,287.69, 97,779.66 and 63,491.85 is: 95,090.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,287.69 : 97,779.66 = 63,491.85 : x
  2. Step 2: Convert to fraction form
    65,287.69/97,779.66 = 63,491.85/x
  3. Step 3: Cross multiply
    65,287.69x = 97,779.66 × 63,491.85
  4. Step 4: Simplify right side
    65,287.69x = 6,208,211,267.68
  5. Step 5: Solve for x
    x = 6,208,211,267.68/65,287.69
  6. Step 6: Final answer
    x = 95,090.08

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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.