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Finding the Fourth Proportional to 11,751.16, 17,585.56 and 8,423.07

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Solution

The fourth proportional to 11,751.16, 17,585.56 and 8,423.07 is: 12,605.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,751.16 : 17,585.56 = 8,423.07 : x
  2. Step 2: Convert to fraction form
    11,751.16/17,585.56 = 8,423.07/x
  3. Step 3: Cross multiply
    11,751.16x = 17,585.56 × 8,423.07
  4. Step 4: Simplify right side
    11,751.16x = 148,124,398.99
  5. Step 5: Solve for x
    x = 148,124,398.99/11,751.16
  6. Step 6: Final answer
    x = 12,605.09

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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.