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Finding the Fourth Proportional to 5,307.80, 7,943.16 and 4,483.72

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Solution

The fourth proportional to 5,307.80, 7,943.16 and 4,483.72 is: 6,709.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,307.80 : 7,943.16 = 4,483.72 : x
  2. Step 2: Convert to fraction form
    5,307.80/7,943.16 = 4,483.72/x
  3. Step 3: Cross multiply
    5,307.80x = 7,943.16 × 4,483.72
  4. Step 4: Simplify right side
    5,307.80x = 35,614,932.10
  5. Step 5: Solve for x
    x = 35,614,932.10/5,307.80
  6. Step 6: Final answer
    x = 6,709.93

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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.