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Finding the Fourth Proportional to 8,763.63, 13,145.64 and 4,892.67

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Solution

The fourth proportional to 8,763.63, 13,145.64 and 4,892.67 is: 7,339.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,763.63 : 13,145.64 = 4,892.67 : x
  2. Step 2: Convert to fraction form
    8,763.63/13,145.64 = 4,892.67/x
  3. Step 3: Cross multiply
    8,763.63x = 13,145.64 × 4,892.67
  4. Step 4: Simplify right side
    8,763.63x = 64,317,278.46
  5. Step 5: Solve for x
    x = 64,317,278.46/8,763.63
  6. Step 6: Final answer
    x = 7,339.11

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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.