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Finding the Fourth Proportional to 14,373.79, 19,835.81 and 8,086.16

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Solution

The fourth proportional to 14,373.79, 19,835.81 and 8,086.16 is: 11,158.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,373.79 : 19,835.81 = 8,086.16 : x
  2. Step 2: Convert to fraction form
    14,373.79/19,835.81 = 8,086.16/x
  3. Step 3: Cross multiply
    14,373.79x = 19,835.81 × 8,086.16
  4. Step 4: Simplify right side
    14,373.79x = 160,395,572.87
  5. Step 5: Solve for x
    x = 160,395,572.87/14,373.79
  6. Step 6: Final answer
    x = 11,158.89

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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.