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Finding the Fourth Proportional to 61,659.64, 92,533.02 and 55,711

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Solution

The fourth proportional to 61,659.64, 92,533.02 and 55,711 is: 83,605.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,659.64 : 92,533.02 = 55,711 : x
  2. Step 2: Convert to fraction form
    61,659.64/92,533.02 = 55,711/x
  3. Step 3: Cross multiply
    61,659.64x = 92,533.02 × 55,711
  4. Step 4: Simplify right side
    61,659.64x = 5,155,107,077.22
  5. Step 5: Solve for x
    x = 5,155,107,077.22/61,659.64
  6. Step 6: Final answer
    x = 83,605.86

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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.