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Finding the Fourth Proportional to 12,368.25, 17,069.03 and 6,988.83

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Solution

The fourth proportional to 12,368.25, 17,069.03 and 6,988.83 is: 9,645.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,368.25 : 17,069.03 = 6,988.83 : x
  2. Step 2: Convert to fraction form
    12,368.25/17,069.03 = 6,988.83/x
  3. Step 3: Cross multiply
    12,368.25x = 17,069.03 × 6,988.83
  4. Step 4: Simplify right side
    12,368.25x = 119,292,548.93
  5. Step 5: Solve for x
    x = 119,292,548.93/12,368.25
  6. Step 6: Final answer
    x = 9,645.06

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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.