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Finding the Fourth Proportional to 14,440.47, 19,919.53 and 8,693.93

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Solution

The fourth proportional to 14,440.47, 19,919.53 and 8,693.93 is: 11,992.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,440.47 : 19,919.53 = 8,693.93 : x
  2. Step 2: Convert to fraction form
    14,440.47/19,919.53 = 8,693.93/x
  3. Step 3: Cross multiply
    14,440.47x = 19,919.53 × 8,693.93
  4. Step 4: Simplify right side
    14,440.47x = 173,178,899.86
  5. Step 5: Solve for x
    x = 173,178,899.86/14,440.47
  6. Step 6: Final answer
    x = 11,992.61

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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.