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Finding the Fourth Proportional to 10,029.60, 15,015.60 and 9,741.60

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Solution

The fourth proportional to 10,029.60, 15,015.60 and 9,741.60 is: 14,584.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,029.60 : 15,015.60 = 9,741.60 : x
  2. Step 2: Convert to fraction form
    10,029.60/15,015.60 = 9,741.60/x
  3. Step 3: Cross multiply
    10,029.60x = 15,015.60 × 9,741.60
  4. Step 4: Simplify right side
    10,029.60x = 146,275,968.96
  5. Step 5: Solve for x
    x = 146,275,968.96/10,029.60
  6. Step 6: Final answer
    x = 14,584.43

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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.