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Finding the Fourth Proportional to 72,392.04, 108,658.14 and 34,978.44

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Solution

The fourth proportional to 72,392.04, 108,658.14 and 34,978.44 is: 52,501.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,392.04 : 108,658.14 = 34,978.44 : x
  2. Step 2: Convert to fraction form
    72,392.04/108,658.14 = 34,978.44/x
  3. Step 3: Cross multiply
    72,392.04x = 108,658.14 × 34,978.44
  4. Step 4: Simplify right side
    72,392.04x = 3,800,692,230.50
  5. Step 5: Solve for x
    x = 3,800,692,230.50/72,392.04
  6. Step 6: Final answer
    x = 52,501.52

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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.