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Finding the Fourth Proportional to 45,691.83, 68,539.53 and 14,099.07

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Solution

The fourth proportional to 45,691.83, 68,539.53 and 14,099.07 is: 21,149.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,691.83 : 68,539.53 = 14,099.07 : x
  2. Step 2: Convert to fraction form
    45,691.83/68,539.53 = 14,099.07/x
  3. Step 3: Cross multiply
    45,691.83x = 68,539.53 × 14,099.07
  4. Step 4: Simplify right side
    45,691.83x = 966,343,941.13
  5. Step 5: Solve for x
    x = 966,343,941.13/45,691.83
  6. Step 6: Final answer
    x = 21,149.16

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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.