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Finding the Fourth Proportional to 19,331.68, 28,994.64 and 6,182.68

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Solution

The fourth proportional to 19,331.68, 28,994.64 and 6,182.68 is: 9,273.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,331.68 : 28,994.64 = 6,182.68 : x
  2. Step 2: Convert to fraction form
    19,331.68/28,994.64 = 6,182.68/x
  3. Step 3: Cross multiply
    19,331.68x = 28,994.64 × 6,182.68
  4. Step 4: Simplify right side
    19,331.68x = 179,264,580.84
  5. Step 5: Solve for x
    x = 179,264,580.84/19,331.68
  6. Step 6: Final answer
    x = 9,273.10

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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.