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Finding the Fourth Proportional to 49,773.67, 74,623.44 and 21,688.40

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Solution

The fourth proportional to 49,773.67, 74,623.44 and 21,688.40 is: 32,516.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,773.67 : 74,623.44 = 21,688.40 : x
  2. Step 2: Convert to fraction form
    49,773.67/74,623.44 = 21,688.40/x
  3. Step 3: Cross multiply
    49,773.67x = 74,623.44 × 21,688.40
  4. Step 4: Simplify right side
    49,773.67x = 1,618,463,016.10
  5. Step 5: Solve for x
    x = 1,618,463,016.10/49,773.67
  6. Step 6: Final answer
    x = 32,516.45

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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.