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Finding the Fourth Proportional to 64,993.38, 97,502.19 and 20,608.20

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Solution

The fourth proportional to 64,993.38, 97,502.19 and 20,608.20 is: 30,916.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,993.38 : 97,502.19 = 20,608.20 : x
  2. Step 2: Convert to fraction form
    64,993.38/97,502.19 = 20,608.20/x
  3. Step 3: Cross multiply
    64,993.38x = 97,502.19 × 20,608.20
  4. Step 4: Simplify right side
    64,993.38x = 2,009,344,631.96
  5. Step 5: Solve for x
    x = 2,009,344,631.96/64,993.38
  6. Step 6: Final answer
    x = 30,916.14

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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.