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Finding the Fourth Proportional to 18,751.13, 25,877.09 and 10,368.17

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Solution

The fourth proportional to 18,751.13, 25,877.09 and 10,368.17 is: 14,308.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,751.13 : 25,877.09 = 10,368.17 : x
  2. Step 2: Convert to fraction form
    18,751.13/25,877.09 = 10,368.17/x
  3. Step 3: Cross multiply
    18,751.13x = 25,877.09 × 10,368.17
  4. Step 4: Simplify right side
    18,751.13x = 268,298,068.23
  5. Step 5: Solve for x
    x = 268,298,068.23/18,751.13
  6. Step 6: Final answer
    x = 14,308.37

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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.