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Finding the Fourth Proportional to 4,894.60, 7,341.90 and 2,590.60

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Solution

The fourth proportional to 4,894.60, 7,341.90 and 2,590.60 is: 3,885.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,894.60 : 7,341.90 = 2,590.60 : x
  2. Step 2: Convert to fraction form
    4,894.60/7,341.90 = 2,590.60/x
  3. Step 3: Cross multiply
    4,894.60x = 7,341.90 × 2,590.60
  4. Step 4: Simplify right side
    4,894.60x = 19,019,926.14
  5. Step 5: Solve for x
    x = 19,019,926.14/4,894.60
  6. Step 6: Final answer
    x = 3,885.90

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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.