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Finding the Fourth Proportional to 17,913.64, 24,720.64 and 9,955.70

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Solution

The fourth proportional to 17,913.64, 24,720.64 and 9,955.70 is: 13,738.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,913.64 : 24,720.64 = 9,955.70 : x
  2. Step 2: Convert to fraction form
    17,913.64/24,720.64 = 9,955.70/x
  3. Step 3: Cross multiply
    17,913.64x = 24,720.64 × 9,955.70
  4. Step 4: Simplify right side
    17,913.64x = 246,111,275.65
  5. Step 5: Solve for x
    x = 246,111,275.65/17,913.64
  6. Step 6: Final answer
    x = 13,738.76

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.