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Finding the Fourth Proportional to 8,352.99, 12,528.18 and 3,090.51

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Solution

The fourth proportional to 8,352.99, 12,528.18 and 3,090.51 is: 4,635.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,352.99 : 12,528.18 = 3,090.51 : x
  2. Step 2: Convert to fraction form
    8,352.99/12,528.18 = 3,090.51/x
  3. Step 3: Cross multiply
    8,352.99x = 12,528.18 × 3,090.51
  4. Step 4: Simplify right side
    8,352.99x = 38,718,465.57
  5. Step 5: Solve for x
    x = 38,718,465.57/8,352.99
  6. Step 6: Final answer
    x = 4,635.28

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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.