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Finding the Fourth Proportional to 5,590.90, 8,374.20 and 4,497.40

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Solution

The fourth proportional to 5,590.90, 8,374.20 and 4,497.40 is: 6,736.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,590.90 : 8,374.20 = 4,497.40 : x
  2. Step 2: Convert to fraction form
    5,590.90/8,374.20 = 4,497.40/x
  3. Step 3: Cross multiply
    5,590.90x = 8,374.20 × 4,497.40
  4. Step 4: Simplify right side
    5,590.90x = 37,662,127.08
  5. Step 5: Solve for x
    x = 37,662,127.08/5,590.90
  6. Step 6: Final answer
    x = 6,736.33

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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.