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Finding the Fourth Proportional to 66,035.52, 99,053.28 and 30,975.18

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Solution

The fourth proportional to 66,035.52, 99,053.28 and 30,975.18 is: 46,462.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,035.52 : 99,053.28 = 30,975.18 : x
  2. Step 2: Convert to fraction form
    66,035.52/99,053.28 = 30,975.18/x
  3. Step 3: Cross multiply
    66,035.52x = 99,053.28 × 30,975.18
  4. Step 4: Simplify right side
    66,035.52x = 3,068,193,061.43
  5. Step 5: Solve for x
    x = 3,068,193,061.43/66,035.52
  6. Step 6: Final answer
    x = 46,462.77

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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.