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Finding the Fourth Proportional to 71,455.59, 107,184.60 and 27,103.23

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Solution

The fourth proportional to 71,455.59, 107,184.60 and 27,103.23 is: 40,655.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,455.59 : 107,184.60 = 27,103.23 : x
  2. Step 2: Convert to fraction form
    71,455.59/107,184.60 = 27,103.23/x
  3. Step 3: Cross multiply
    71,455.59x = 107,184.60 × 27,103.23
  4. Step 4: Simplify right side
    71,455.59x = 2,905,048,866.26
  5. Step 5: Solve for x
    x = 2,905,048,866.26/71,455.59
  6. Step 6: Final answer
    x = 40,655.31

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1.5x scale

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.