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Finding the Fourth Proportional to 12,811.08, 19,220.04 and 4,046.16

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Solution

The fourth proportional to 12,811.08, 19,220.04 and 4,046.16 is: 6,070.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,811.08 : 19,220.04 = 4,046.16 : x
  2. Step 2: Convert to fraction form
    12,811.08/19,220.04 = 4,046.16/x
  3. Step 3: Cross multiply
    12,811.08x = 19,220.04 × 4,046.16
  4. Step 4: Simplify right side
    12,811.08x = 77,767,357.05
  5. Step 5: Solve for x
    x = 77,767,357.05/12,811.08
  6. Step 6: Final answer
    x = 6,070.32

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.