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Finding the Fourth Proportional to 14,225.81, 19,631.79 and 7,852.68

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Solution

The fourth proportional to 14,225.81, 19,631.79 and 7,852.68 is: 10,836.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,225.81 : 19,631.79 = 7,852.68 : x
  2. Step 2: Convert to fraction form
    14,225.81/19,631.79 = 7,852.68/x
  3. Step 3: Cross multiply
    14,225.81x = 19,631.79 × 7,852.68
  4. Step 4: Simplify right side
    14,225.81x = 154,162,164.70
  5. Step 5: Solve for x
    x = 154,162,164.70/14,225.81
  6. Step 6: Final answer
    x = 10,836.80

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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.