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Finding the Fourth Proportional to 14,791.86, 22,188.42 and 4,931.46

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Solution

The fourth proportional to 14,791.86, 22,188.42 and 4,931.46 is: 7,397.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,791.86 : 22,188.42 = 4,931.46 : x
  2. Step 2: Convert to fraction form
    14,791.86/22,188.42 = 4,931.46/x
  3. Step 3: Cross multiply
    14,791.86x = 22,188.42 × 4,931.46
  4. Step 4: Simplify right side
    14,791.86x = 109,421,305.69
  5. Step 5: Solve for x
    x = 109,421,305.69/14,791.86
  6. Step 6: Final answer
    x = 7,397.40

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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.