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Finding the Fourth Proportional to 16,643.64, 22,984.65 and 13,100.70

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Solution

The fourth proportional to 16,643.64, 22,984.65 and 13,100.70 is: 18,091.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,643.64 : 22,984.65 = 13,100.70 : x
  2. Step 2: Convert to fraction form
    16,643.64/22,984.65 = 13,100.70/x
  3. Step 3: Cross multiply
    16,643.64x = 22,984.65 × 13,100.70
  4. Step 4: Simplify right side
    16,643.64x = 301,115,004.26
  5. Step 5: Solve for x
    x = 301,115,004.26/16,643.64
  6. Step 6: Final answer
    x = 18,091.90

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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.