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Finding the Fourth Proportional to 9,770.03, 13,482.46 and 5,521.00

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Solution

The fourth proportional to 9,770.03, 13,482.46 and 5,521.00 is: 7,618.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,770.03 : 13,482.46 = 5,521.00 : x
  2. Step 2: Convert to fraction form
    9,770.03/13,482.46 = 5,521.00/x
  3. Step 3: Cross multiply
    9,770.03x = 13,482.46 × 5,521.00
  4. Step 4: Simplify right side
    9,770.03x = 74,436,648.94
  5. Step 5: Solve for x
    x = 74,436,648.94/9,770.03
  6. Step 6: Final answer
    x = 7,618.88

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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.