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Finding the Fourth Proportional to 5,613.90, 8,404.65 and 5,322.30

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Solution

The fourth proportional to 5,613.90, 8,404.65 and 5,322.30 is: 7,968.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,613.90 : 8,404.65 = 5,322.30 : x
  2. Step 2: Convert to fraction form
    5,613.90/8,404.65 = 5,322.30/x
  3. Step 3: Cross multiply
    5,613.90x = 8,404.65 × 5,322.30
  4. Step 4: Simplify right side
    5,613.90x = 44,732,068.70
  5. Step 5: Solve for x
    x = 44,732,068.70/5,613.90
  6. Step 6: Final answer
    x = 7,968.09

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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.