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Finding the Fourth Proportional to 7,065.96, 10,600.68 and 4,990.02

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Solution

The fourth proportional to 7,065.96, 10,600.68 and 4,990.02 is: 7,486.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,065.96 : 10,600.68 = 4,990.02 : x
  2. Step 2: Convert to fraction form
    7,065.96/10,600.68 = 4,990.02/x
  3. Step 3: Cross multiply
    7,065.96x = 10,600.68 × 4,990.02
  4. Step 4: Simplify right side
    7,065.96x = 52,897,605.21
  5. Step 5: Solve for x
    x = 52,897,605.21/7,065.96
  6. Step 6: Final answer
    x = 7,486.26

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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.