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Finding the Fourth Proportional to 7,066.80, 9,744.12 and 5,070.96

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Solution

The fourth proportional to 7,066.80, 9,744.12 and 5,070.96 is: 6,992.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,066.80 : 9,744.12 = 5,070.96 : x
  2. Step 2: Convert to fraction form
    7,066.80/9,744.12 = 5,070.96/x
  3. Step 3: Cross multiply
    7,066.80x = 9,744.12 × 5,070.96
  4. Step 4: Simplify right side
    7,066.80x = 49,412,042.76
  5. Step 5: Solve for x
    x = 49,412,042.76/7,066.80
  6. Step 6: Final answer
    x = 6,992.14

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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.