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Finding the Fourth Proportional to 70,027.56, 96,638.13 and 39,812.94

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Solution

The fourth proportional to 70,027.56, 96,638.13 and 39,812.94 is: 54,941.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,027.56 : 96,638.13 = 39,812.94 : x
  2. Step 2: Convert to fraction form
    70,027.56/96,638.13 = 39,812.94/x
  3. Step 3: Cross multiply
    70,027.56x = 96,638.13 × 39,812.94
  4. Step 4: Simplify right side
    70,027.56x = 3,847,448,071.40
  5. Step 5: Solve for x
    x = 3,847,448,071.40/70,027.56
  6. Step 6: Final answer
    x = 54,941.91

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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.