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Finding the Fourth Proportional to 68,164.01, 94,065.44 and 39,487.58

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Solution

The fourth proportional to 68,164.01, 94,065.44 and 39,487.58 is: 54,492.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,164.01 : 94,065.44 = 39,487.58 : x
  2. Step 2: Convert to fraction form
    68,164.01/94,065.44 = 39,487.58/x
  3. Step 3: Cross multiply
    68,164.01x = 94,065.44 × 39,487.58
  4. Step 4: Simplify right side
    68,164.01x = 3,714,416,921.12
  5. Step 5: Solve for x
    x = 3,714,416,921.12/68,164.01
  6. Step 6: Final answer
    x = 54,492.35

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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.