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Finding the Fourth Proportional to 18,994.01, 28,482.75 and 7,299

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Solution

The fourth proportional to 18,994.01, 28,482.75 and 7,299 is: 10,945.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,994.01 : 28,482.75 = 7,299 : x
  2. Step 2: Convert to fraction form
    18,994.01/28,482.75 = 7,299/x
  3. Step 3: Cross multiply
    18,994.01x = 28,482.75 × 7,299
  4. Step 4: Simplify right side
    18,994.01x = 207,895,592.25
  5. Step 5: Solve for x
    x = 207,895,592.25/18,994.01
  6. Step 6: Final answer
    x = 10,945.33

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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.