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Finding the Fourth Proportional to 14,358.06, 19,815.03 and 8,070.84

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Solution

The fourth proportional to 14,358.06, 19,815.03 and 8,070.84 is: 11,138.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,358.06 : 19,815.03 = 8,070.84 : x
  2. Step 2: Convert to fraction form
    14,358.06/19,815.03 = 8,070.84/x
  3. Step 3: Cross multiply
    14,358.06x = 19,815.03 × 8,070.84
  4. Step 4: Simplify right side
    14,358.06x = 159,923,936.73
  5. Step 5: Solve for x
    x = 159,923,936.73/14,358.06
  6. Step 6: Final answer
    x = 11,138.27

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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.