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Finding the Fourth Proportional to 16,698.74, 25,039.74 and 9,308.30

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Solution

The fourth proportional to 16,698.74, 25,039.74 and 9,308.30 is: 13,957.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,698.74 : 25,039.74 = 9,308.30 : x
  2. Step 2: Convert to fraction form
    16,698.74/25,039.74 = 9,308.30/x
  3. Step 3: Cross multiply
    16,698.74x = 25,039.74 × 9,308.30
  4. Step 4: Simplify right side
    16,698.74x = 233,077,411.84
  5. Step 5: Solve for x
    x = 233,077,411.84/16,698.74
  6. Step 6: Final answer
    x = 13,957.78

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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.