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Finding the Fourth Proportional to 18,590.78, 25,655.37 and 10,633.34

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Solution

The fourth proportional to 18,590.78, 25,655.37 and 10,633.34 is: 14,674.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,590.78 : 25,655.37 = 10,633.34 : x
  2. Step 2: Convert to fraction form
    18,590.78/25,655.37 = 10,633.34/x
  3. Step 3: Cross multiply
    18,590.78x = 25,655.37 × 10,633.34
  4. Step 4: Simplify right side
    18,590.78x = 272,802,272.04
  5. Step 5: Solve for x
    x = 272,802,272.04/18,590.78
  6. Step 6: Final answer
    x = 14,674.06

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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.