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Finding the Fourth Proportional to 70,469.51, 97,247.22 and 38,638.34

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Solution

The fourth proportional to 70,469.51, 97,247.22 and 38,638.34 is: 53,320.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,469.51 : 97,247.22 = 38,638.34 : x
  2. Step 2: Convert to fraction form
    70,469.51/97,247.22 = 38,638.34/x
  3. Step 3: Cross multiply
    70,469.51x = 97,247.22 × 38,638.34
  4. Step 4: Simplify right side
    70,469.51x = 3,757,470,664.18
  5. Step 5: Solve for x
    x = 3,757,470,664.18/70,469.51
  6. Step 6: Final answer
    x = 53,320.52

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.