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Finding the Fourth Proportional to 8,322.90, 12,484.59 and 2,082.90

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Solution

The fourth proportional to 8,322.90, 12,484.59 and 2,082.90 is: 3,124.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,322.90 : 12,484.59 = 2,082.90 : x
  2. Step 2: Convert to fraction form
    8,322.90/12,484.59 = 2,082.90/x
  3. Step 3: Cross multiply
    8,322.90x = 12,484.59 × 2,082.90
  4. Step 4: Simplify right side
    8,322.90x = 26,004,152.51
  5. Step 5: Solve for x
    x = 26,004,152.51/8,322.90
  6. Step 6: Final answer
    x = 3,124.41

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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.