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Finding the Fourth Proportional to 12,798.62, 17,534.21 and 12,319.23

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Solution

The fourth proportional to 12,798.62, 17,534.21 and 12,319.23 is: 16,877.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,798.62 : 17,534.21 = 12,319.23 : x
  2. Step 2: Convert to fraction form
    12,798.62/17,534.21 = 12,319.23/x
  3. Step 3: Cross multiply
    12,798.62x = 17,534.21 × 12,319.23
  4. Step 4: Simplify right side
    12,798.62x = 216,007,904.26
  5. Step 5: Solve for x
    x = 216,007,904.26/12,798.62
  6. Step 6: Final answer
    x = 16,877.44

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.