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Finding the Fourth Proportional to 18,263.68, 25,205.04 and 10,303

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Solution

The fourth proportional to 18,263.68, 25,205.04 and 10,303 is: 14,218.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,263.68 : 25,205.04 = 10,303 : x
  2. Step 2: Convert to fraction form
    18,263.68/25,205.04 = 10,303/x
  3. Step 3: Cross multiply
    18,263.68x = 25,205.04 × 10,303
  4. Step 4: Simplify right side
    18,263.68x = 259,687,527.12
  5. Step 5: Solve for x
    x = 259,687,527.12/18,263.68
  6. Step 6: Final answer
    x = 14,218.80

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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.