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Finding the Fourth Proportional to 8,774.60, 13,150.70 and 3,574.60

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Solution

The fourth proportional to 8,774.60, 13,150.70 and 3,574.60 is: 5,357.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,774.60 : 13,150.70 = 3,574.60 : x
  2. Step 2: Convert to fraction form
    8,774.60/13,150.70 = 3,574.60/x
  3. Step 3: Cross multiply
    8,774.60x = 13,150.70 × 3,574.60
  4. Step 4: Simplify right side
    8,774.60x = 47,008,492.22
  5. Step 5: Solve for x
    x = 47,008,492.22/8,774.60
  6. Step 6: Final answer
    x = 5,357.34

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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.