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Finding the Fourth Proportional to 66,864.51, 100,296.59 and 16,944.47

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Solution

The fourth proportional to 66,864.51, 100,296.59 and 16,944.47 is: 25,416.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,864.51 : 100,296.59 = 16,944.47 : x
  2. Step 2: Convert to fraction form
    66,864.51/100,296.59 = 16,944.47/x
  3. Step 3: Cross multiply
    66,864.51x = 100,296.59 × 16,944.47
  4. Step 4: Simplify right side
    66,864.51x = 1,699,472,560.36
  5. Step 5: Solve for x
    x = 1,699,472,560.36/66,864.51
  6. Step 6: Final answer
    x = 25,416.66

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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.