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Finding the Fourth Proportional to 49,363.56, 74,045.28 and 12,427.56

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Solution

The fourth proportional to 49,363.56, 74,045.28 and 12,427.56 is: 18,641.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,363.56 : 74,045.28 = 12,427.56 : x
  2. Step 2: Convert to fraction form
    49,363.56/74,045.28 = 12,427.56/x
  3. Step 3: Cross multiply
    49,363.56x = 74,045.28 × 12,427.56
  4. Step 4: Simplify right side
    49,363.56x = 920,202,159.92
  5. Step 5: Solve for x
    x = 920,202,159.92/49,363.56
  6. Step 6: Final answer
    x = 18,641.32

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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.