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Finding the Fourth Proportional to 64,896.92, 97,344.76 and 20,523.68

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Solution

The fourth proportional to 64,896.92, 97,344.76 and 20,523.68 is: 30,785.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,896.92 : 97,344.76 = 20,523.68 : x
  2. Step 2: Convert to fraction form
    64,896.92/97,344.76 = 20,523.68/x
  3. Step 3: Cross multiply
    64,896.92x = 97,344.76 × 20,523.68
  4. Step 4: Simplify right side
    64,896.92x = 1,997,872,703.92
  5. Step 5: Solve for x
    x = 1,997,872,703.92/64,896.92
  6. Step 6: Final answer
    x = 30,785.32

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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.