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Finding the Fourth Proportional to 18,705.51, 25,813.62 and 10,322.01

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Solution

The fourth proportional to 18,705.51, 25,813.62 and 10,322.01 is: 14,244.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,705.51 : 25,813.62 = 10,322.01 : x
  2. Step 2: Convert to fraction form
    18,705.51/25,813.62 = 10,322.01/x
  3. Step 3: Cross multiply
    18,705.51x = 25,813.62 × 10,322.01
  4. Step 4: Simplify right side
    18,705.51x = 266,448,443.78
  5. Step 5: Solve for x
    x = 266,448,443.78/18,705.51
  6. Step 6: Final answer
    x = 14,244.38

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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.