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Finding the Fourth Proportional to 65,784.03, 90,779.52 and 37,484.25

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Solution

The fourth proportional to 65,784.03, 90,779.52 and 37,484.25 is: 51,726.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,784.03 : 90,779.52 = 37,484.25 : x
  2. Step 2: Convert to fraction form
    65,784.03/90,779.52 = 37,484.25/x
  3. Step 3: Cross multiply
    65,784.03x = 90,779.52 × 37,484.25
  4. Step 4: Simplify right side
    65,784.03x = 3,402,802,222.56
  5. Step 5: Solve for x
    x = 3,402,802,222.56/65,784.03
  6. Step 6: Final answer
    x = 51,726.87

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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.