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Finding the Fourth Proportional to 10,360.79, 15,541.29 and 8,293.93

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Solution

The fourth proportional to 10,360.79, 15,541.29 and 8,293.93 is: 12,440.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,360.79 : 15,541.29 = 8,293.93 : x
  2. Step 2: Convert to fraction form
    10,360.79/15,541.29 = 8,293.93/x
  3. Step 3: Cross multiply
    10,360.79x = 15,541.29 × 8,293.93
  4. Step 4: Simplify right side
    10,360.79x = 128,898,419.94
  5. Step 5: Solve for x
    x = 128,898,419.94/10,360.79
  6. Step 6: Final answer
    x = 12,440.99

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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.