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Finding the Fourth Proportional to 30,228.34, 45,342.45 and 8,041.73

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Solution

The fourth proportional to 30,228.34, 45,342.45 and 8,041.73 is: 12,062.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,228.34 : 45,342.45 = 8,041.73 : x
  2. Step 2: Convert to fraction form
    30,228.34/45,342.45 = 8,041.73/x
  3. Step 3: Cross multiply
    30,228.34x = 45,342.45 × 8,041.73
  4. Step 4: Simplify right side
    30,228.34x = 364,631,740.44
  5. Step 5: Solve for x
    x = 364,631,740.44/30,228.34
  6. Step 6: Final answer
    x = 12,062.58

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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.