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Finding the Fourth Proportional to 12,038.15, 16,612.70 and 6,733.06

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Solution

The fourth proportional to 12,038.15, 16,612.70 and 6,733.06 is: 9,291.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,038.15 : 16,612.70 = 6,733.06 : x
  2. Step 2: Convert to fraction form
    12,038.15/16,612.70 = 6,733.06/x
  3. Step 3: Cross multiply
    12,038.15x = 16,612.70 × 6,733.06
  4. Step 4: Simplify right side
    12,038.15x = 111,854,230.66
  5. Step 5: Solve for x
    x = 111,854,230.66/12,038.15
  6. Step 6: Final answer
    x = 9,291.64

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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.