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Finding the Fourth Proportional to 61,187.68, 91,782.53 and 16,814.16

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Solution

The fourth proportional to 61,187.68, 91,782.53 and 16,814.16 is: 25,221.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,187.68 : 91,782.53 = 16,814.16 : x
  2. Step 2: Convert to fraction form
    61,187.68/91,782.53 = 16,814.16/x
  3. Step 3: Cross multiply
    61,187.68x = 91,782.53 × 16,814.16
  4. Step 4: Simplify right side
    61,187.68x = 1,543,246,144.62
  5. Step 5: Solve for x
    x = 1,543,246,144.62/61,187.68
  6. Step 6: Final answer
    x = 25,221.52

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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.