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Finding the Fourth Proportional to 5,307.36, 7,946.64 and 3,661.92

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Solution

The fourth proportional to 5,307.36, 7,946.64 and 3,661.92 is: 5,482.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,307.36 : 7,946.64 = 3,661.92 : x
  2. Step 2: Convert to fraction form
    5,307.36/7,946.64 = 3,661.92/x
  3. Step 3: Cross multiply
    5,307.36x = 7,946.64 × 3,661.92
  4. Step 4: Simplify right side
    5,307.36x = 29,099,959.95
  5. Step 5: Solve for x
    x = 29,099,959.95/5,307.36
  6. Step 6: Final answer
    x = 5,482.94

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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.