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Finding the Fourth Proportional to 8,854.64, 13,281.84 and 3,015.32

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Solution

The fourth proportional to 8,854.64, 13,281.84 and 3,015.32 is: 4,522.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,854.64 : 13,281.84 = 3,015.32 : x
  2. Step 2: Convert to fraction form
    8,854.64/13,281.84 = 3,015.32/x
  3. Step 3: Cross multiply
    8,854.64x = 13,281.84 × 3,015.32
  4. Step 4: Simplify right side
    8,854.64x = 40,048,997.79
  5. Step 5: Solve for x
    x = 40,048,997.79/8,854.64
  6. Step 6: Final answer
    x = 4,522.94

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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.