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Finding the Fourth Proportional to 7,376.76, 11,074.86 and 7,064.10

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Solution

The fourth proportional to 7,376.76, 11,074.86 and 7,064.10 is: 10,605.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,376.76 : 11,074.86 = 7,064.10 : x
  2. Step 2: Convert to fraction form
    7,376.76/11,074.86 = 7,064.10/x
  3. Step 3: Cross multiply
    7,376.76x = 11,074.86 × 7,064.10
  4. Step 4: Simplify right side
    7,376.76x = 78,233,918.53
  5. Step 5: Solve for x
    x = 78,233,918.53/7,376.76
  6. Step 6: Final answer
    x = 10,605.46

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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.