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Finding the Fourth Proportional to 12,235.16, 16,883.98 and 6,929.87

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Solution

The fourth proportional to 12,235.16, 16,883.98 and 6,929.87 is: 9,562.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,235.16 : 16,883.98 = 6,929.87 : x
  2. Step 2: Convert to fraction form
    12,235.16/16,883.98 = 6,929.87/x
  3. Step 3: Cross multiply
    12,235.16x = 16,883.98 × 6,929.87
  4. Step 4: Simplify right side
    12,235.16x = 117,003,684.74
  5. Step 5: Solve for x
    x = 117,003,684.74/12,235.16
  6. Step 6: Final answer
    x = 9,562.90

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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.