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Finding the Fourth Proportional to 7,225.64, 10,840.40 and 3,065.82

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Solution

The fourth proportional to 7,225.64, 10,840.40 and 3,065.82 is: 4,599.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,225.64 : 10,840.40 = 3,065.82 : x
  2. Step 2: Convert to fraction form
    7,225.64/10,840.40 = 3,065.82/x
  3. Step 3: Cross multiply
    7,225.64x = 10,840.40 × 3,065.82
  4. Step 4: Simplify right side
    7,225.64x = 33,234,715.13
  5. Step 5: Solve for x
    x = 33,234,715.13/7,225.64
  6. Step 6: Final answer
    x = 4,599.55

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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.