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Finding the Fourth Proportional to 19,677.99, 29,522.47 and 8,585.67

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Solution

The fourth proportional to 19,677.99, 29,522.47 and 8,585.67 is: 12,880.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,677.99 : 29,522.47 = 8,585.67 : x
  2. Step 2: Convert to fraction form
    19,677.99/29,522.47 = 8,585.67/x
  3. Step 3: Cross multiply
    19,677.99x = 29,522.47 × 8,585.67
  4. Step 4: Simplify right side
    19,677.99x = 253,470,185.00
  5. Step 5: Solve for x
    x = 253,470,185.00/19,677.99
  6. Step 6: Final answer
    x = 12,880.90

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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.