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Finding the Fourth Proportional to 12,994.49, 19,492.03 and 4,230.08

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Solution

The fourth proportional to 12,994.49, 19,492.03 and 4,230.08 is: 6,345.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,994.49 : 19,492.03 = 4,230.08 : x
  2. Step 2: Convert to fraction form
    12,994.49/19,492.03 = 4,230.08/x
  3. Step 3: Cross multiply
    12,994.49x = 19,492.03 × 4,230.08
  4. Step 4: Simplify right side
    12,994.49x = 82,452,884.42
  5. Step 5: Solve for x
    x = 82,452,884.42/12,994.49
  6. Step 6: Final answer
    x = 6,345.22

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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.