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Finding the Fourth Proportional to 13,060.09, 18,023.76 and 7,957.48

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Solution

The fourth proportional to 13,060.09, 18,023.76 and 7,957.48 is: 10,981.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,060.09 : 18,023.76 = 7,957.48 : x
  2. Step 2: Convert to fraction form
    13,060.09/18,023.76 = 7,957.48/x
  3. Step 3: Cross multiply
    13,060.09x = 18,023.76 × 7,957.48
  4. Step 4: Simplify right side
    13,060.09x = 143,423,709.72
  5. Step 5: Solve for x
    x = 143,423,709.72/13,060.09
  6. Step 6: Final answer
    x = 10,981.83

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.