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Finding the Fourth Proportional to 30,437.67, 45,659.09 and 7,951.33

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Solution

The fourth proportional to 30,437.67, 45,659.09 and 7,951.33 is: 11,927.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,437.67 : 45,659.09 = 7,951.33 : x
  2. Step 2: Convert to fraction form
    30,437.67/45,659.09 = 7,951.33/x
  3. Step 3: Cross multiply
    30,437.67x = 45,659.09 × 7,951.33
  4. Step 4: Simplify right side
    30,437.67x = 363,050,569.04
  5. Step 5: Solve for x
    x = 363,050,569.04/30,437.67
  6. Step 6: Final answer
    x = 11,927.67

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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.