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Finding the Fourth Proportional to 9,975.45, 14,963.21 and 9,366.51

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Solution

The fourth proportional to 9,975.45, 14,963.21 and 9,366.51 is: 14,049.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,975.45 : 14,963.21 = 9,366.51 : x
  2. Step 2: Convert to fraction form
    9,975.45/14,963.21 = 9,366.51/x
  3. Step 3: Cross multiply
    9,975.45x = 14,963.21 × 9,366.51
  4. Step 4: Simplify right side
    9,975.45x = 140,153,009.26
  5. Step 5: Solve for x
    x = 140,153,009.26/9,975.45
  6. Step 6: Final answer
    x = 14,049.79

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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.