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Finding the Fourth Proportional to 61,720.51, 92,580.90 and 22,305.46

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Solution

The fourth proportional to 61,720.51, 92,580.90 and 22,305.46 is: 33,458.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,720.51 : 92,580.90 = 22,305.46 : x
  2. Step 2: Convert to fraction form
    61,720.51/92,580.90 = 22,305.46/x
  3. Step 3: Cross multiply
    61,720.51x = 92,580.90 × 22,305.46
  4. Step 4: Simplify right side
    61,720.51x = 2,065,059,561.71
  5. Step 5: Solve for x
    x = 2,065,059,561.71/61,720.51
  6. Step 6: Final answer
    x = 33,458.24

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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.