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Finding the Fourth Proportional to 16,607.28, 22,905.09 and 10,639.51

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Solution

The fourth proportional to 16,607.28, 22,905.09 and 10,639.51 is: 14,674.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,607.28 : 22,905.09 = 10,639.51 : x
  2. Step 2: Convert to fraction form
    16,607.28/22,905.09 = 10,639.51/x
  3. Step 3: Cross multiply
    16,607.28x = 22,905.09 × 10,639.51
  4. Step 4: Simplify right side
    16,607.28x = 243,698,934.11
  5. Step 5: Solve for x
    x = 243,698,934.11/16,607.28
  6. Step 6: Final answer
    x = 14,674.22

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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.