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Finding the Fourth Proportional to 12,203.16, 16,840.62 and 6,897.66

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Solution

The fourth proportional to 12,203.16, 16,840.62 and 6,897.66 is: 9,518.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,203.16 : 16,840.62 = 6,897.66 : x
  2. Step 2: Convert to fraction form
    12,203.16/16,840.62 = 6,897.66/x
  3. Step 3: Cross multiply
    12,203.16x = 16,840.62 × 6,897.66
  4. Step 4: Simplify right side
    12,203.16x = 116,160,870.95
  5. Step 5: Solve for x
    x = 116,160,870.95/12,203.16
  6. Step 6: Final answer
    x = 9,518.92

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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.