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Finding the Fourth Proportional to 7,098.98, 10,644.48 and 4,880.42

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Solution

The fourth proportional to 7,098.98, 10,644.48 and 4,880.42 is: 7,317.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,098.98 : 10,644.48 = 4,880.42 : x
  2. Step 2: Convert to fraction form
    7,098.98/10,644.48 = 4,880.42/x
  3. Step 3: Cross multiply
    7,098.98x = 10,644.48 × 4,880.42
  4. Step 4: Simplify right side
    7,098.98x = 51,949,533.08
  5. Step 5: Solve for x
    x = 51,949,533.08/7,098.98
  6. Step 6: Final answer
    x = 7,317.89

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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.