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Finding the Fourth Proportional to 30,720.52, 46,080.24 and 9,944.02

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Solution

The fourth proportional to 30,720.52, 46,080.24 and 9,944.02 is: 14,915.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,720.52 : 46,080.24 = 9,944.02 : x
  2. Step 2: Convert to fraction form
    30,720.52/46,080.24 = 9,944.02/x
  3. Step 3: Cross multiply
    30,720.52x = 46,080.24 × 9,944.02
  4. Step 4: Simplify right side
    30,720.52x = 458,222,828.16
  5. Step 5: Solve for x
    x = 458,222,828.16/30,720.52
  6. Step 6: Final answer
    x = 14,915.86

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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.