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Finding the Fourth Proportional to 68,622.99, 94,701.42 and 38,408.06

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Solution

The fourth proportional to 68,622.99, 94,701.42 and 38,408.06 is: 53,004.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,622.99 : 94,701.42 = 38,408.06 : x
  2. Step 2: Convert to fraction form
    68,622.99/94,701.42 = 38,408.06/x
  3. Step 3: Cross multiply
    68,622.99x = 94,701.42 × 38,408.06
  4. Step 4: Simplify right side
    68,622.99x = 3,637,297,821.45
  5. Step 5: Solve for x
    x = 3,637,297,821.45/68,622.99
  6. Step 6: Final answer
    x = 53,004.07

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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.