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Finding the Fourth Proportional to 18,368.20, 25,347.88 and 10,814.84

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Solution

The fourth proportional to 18,368.20, 25,347.88 and 10,814.84 is: 14,924.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,368.20 : 25,347.88 = 10,814.84 : x
  2. Step 2: Convert to fraction form
    18,368.20/25,347.88 = 10,814.84/x
  3. Step 3: Cross multiply
    18,368.20x = 25,347.88 × 10,814.84
  4. Step 4: Simplify right side
    18,368.20x = 274,133,266.54
  5. Step 5: Solve for x
    x = 274,133,266.54/18,368.20
  6. Step 6: Final answer
    x = 14,924.34

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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.