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Finding the Fourth Proportional to 12,295.06, 18,442.60 and 3,061.06

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Solution

The fourth proportional to 12,295.06, 18,442.60 and 3,061.06 is: 4,591.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,295.06 : 18,442.60 = 3,061.06 : x
  2. Step 2: Convert to fraction form
    12,295.06/18,442.60 = 3,061.06/x
  3. Step 3: Cross multiply
    12,295.06x = 18,442.60 × 3,061.06
  4. Step 4: Simplify right side
    12,295.06x = 56,453,905.16
  5. Step 5: Solve for x
    x = 56,453,905.16/12,295.06
  6. Step 6: Final answer
    x = 4,591.59

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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.