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Finding the Fourth Proportional to 18,647.69, 25,699.55 and 17,464.01

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Solution

The fourth proportional to 18,647.69, 25,699.55 and 17,464.01 is: 24,068.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,647.69 : 25,699.55 = 17,464.01 : x
  2. Step 2: Convert to fraction form
    18,647.69/25,699.55 = 17,464.01/x
  3. Step 3: Cross multiply
    18,647.69x = 25,699.55 × 17,464.01
  4. Step 4: Simplify right side
    18,647.69x = 448,816,982.38
  5. Step 5: Solve for x
    x = 448,816,982.38/18,647.69
  6. Step 6: Final answer
    x = 24,068.24

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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.