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Finding the Fourth Proportional to 66,063.96, 99,104.76 and 19,316.16

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Solution

The fourth proportional to 66,063.96, 99,104.76 and 19,316.16 is: 28,976.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,063.96 : 99,104.76 = 19,316.16 : x
  2. Step 2: Convert to fraction form
    66,063.96/99,104.76 = 19,316.16/x
  3. Step 3: Cross multiply
    66,063.96x = 99,104.76 × 19,316.16
  4. Step 4: Simplify right side
    66,063.96x = 1,914,323,400.92
  5. Step 5: Solve for x
    x = 1,914,323,400.92/66,063.96
  6. Step 6: Final answer
    x = 28,976.82

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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.