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Finding the Fourth Proportional to 14,211.66, 19,612.35 and 7,923.36

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Solution

The fourth proportional to 14,211.66, 19,612.35 and 7,923.36 is: 10,934.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,211.66 : 19,612.35 = 7,923.36 : x
  2. Step 2: Convert to fraction form
    14,211.66/19,612.35 = 7,923.36/x
  3. Step 3: Cross multiply
    14,211.66x = 19,612.35 × 7,923.36
  4. Step 4: Simplify right side
    14,211.66x = 155,395,709.50
  5. Step 5: Solve for x
    x = 155,395,709.50/14,211.66
  6. Step 6: Final answer
    x = 10,934.38

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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.