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Finding the Fourth Proportional to 30,572.88, 45,850.40 and 11,848.74

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Solution

The fourth proportional to 30,572.88, 45,850.40 and 11,848.74 is: 17,769.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,572.88 : 45,850.40 = 11,848.74 : x
  2. Step 2: Convert to fraction form
    30,572.88/45,850.40 = 11,848.74/x
  3. Step 3: Cross multiply
    30,572.88x = 45,850.40 × 11,848.74
  4. Step 4: Simplify right side
    30,572.88x = 543,269,468.50
  5. Step 5: Solve for x
    x = 543,269,468.50/30,572.88
  6. Step 6: Final answer
    x = 17,769.65

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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.