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Finding the Fourth Proportional to 8,074.63, 12,111.95 and 2,528.45

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Solution

The fourth proportional to 8,074.63, 12,111.95 and 2,528.45 is: 3,792.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,074.63 : 12,111.95 = 2,528.45 : x
  2. Step 2: Convert to fraction form
    8,074.63/12,111.95 = 2,528.45/x
  3. Step 3: Cross multiply
    8,074.63x = 12,111.95 × 2,528.45
  4. Step 4: Simplify right side
    8,074.63x = 30,624,459.98
  5. Step 5: Solve for x
    x = 30,624,459.98/8,074.63
  6. Step 6: Final answer
    x = 3,792.68

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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.