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Finding the Fourth Proportional to 10,693.86, 14,750.58 and 6,859.43

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Solution

The fourth proportional to 10,693.86, 14,750.58 and 6,859.43 is: 9,461.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,693.86 : 14,750.58 = 6,859.43 : x
  2. Step 2: Convert to fraction form
    10,693.86/14,750.58 = 6,859.43/x
  3. Step 3: Cross multiply
    10,693.86x = 14,750.58 × 6,859.43
  4. Step 4: Simplify right side
    10,693.86x = 101,180,520.38
  5. Step 5: Solve for x
    x = 101,180,520.38/10,693.86
  6. Step 6: Final answer
    x = 9,461.55

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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.