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Finding the Fourth Proportional to 7,883.55, 11,807.10 and 5,404.95

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Solution

The fourth proportional to 7,883.55, 11,807.10 and 5,404.95 is: 8,094.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,883.55 : 11,807.10 = 5,404.95 : x
  2. Step 2: Convert to fraction form
    7,883.55/11,807.10 = 5,404.95/x
  3. Step 3: Cross multiply
    7,883.55x = 11,807.10 × 5,404.95
  4. Step 4: Simplify right side
    7,883.55x = 63,816,785.15
  5. Step 5: Solve for x
    x = 63,816,785.15/7,883.55
  6. Step 6: Final answer
    x = 8,094.93

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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.