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Finding the Fourth Proportional to 7,904.04, 11,856.05 and 3,222.98

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Solution

The fourth proportional to 7,904.04, 11,856.05 and 3,222.98 is: 4,834.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,904.04 : 11,856.05 = 3,222.98 : x
  2. Step 2: Convert to fraction form
    7,904.04/11,856.05 = 3,222.98/x
  3. Step 3: Cross multiply
    7,904.04x = 11,856.05 × 3,222.98
  4. Step 4: Simplify right side
    7,904.04x = 38,211,812.03
  5. Step 5: Solve for x
    x = 38,211,812.03/7,904.04
  6. Step 6: Final answer
    x = 4,834.47

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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.