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Finding the Fourth Proportional to 7,091.40, 10,619.94 and 6,045.42

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Solution

The fourth proportional to 7,091.40, 10,619.94 and 6,045.42 is: 9,053.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,091.40 : 10,619.94 = 6,045.42 : x
  2. Step 2: Convert to fraction form
    7,091.40/10,619.94 = 6,045.42/x
  3. Step 3: Cross multiply
    7,091.40x = 10,619.94 × 6,045.42
  4. Step 4: Simplify right side
    7,091.40x = 64,201,997.67
  5. Step 5: Solve for x
    x = 64,201,997.67/7,091.40
  6. Step 6: Final answer
    x = 9,053.50

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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.