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Finding the Fourth Proportional to 16,527.28, 22,807.74 and 9,813.20

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Solution

The fourth proportional to 16,527.28, 22,807.74 and 9,813.20 is: 13,542.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,527.28 : 22,807.74 = 9,813.20 : x
  2. Step 2: Convert to fraction form
    16,527.28/22,807.74 = 9,813.20/x
  3. Step 3: Cross multiply
    16,527.28x = 22,807.74 × 9,813.20
  4. Step 4: Simplify right side
    16,527.28x = 223,816,914.17
  5. Step 5: Solve for x
    x = 223,816,914.17/16,527.28
  6. Step 6: Final answer
    x = 13,542.27

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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.