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Finding the Fourth Proportional to 19,458.69, 26,848.04 and 11,902.26

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Solution

The fourth proportional to 19,458.69, 26,848.04 and 11,902.26 is: 16,422.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,458.69 : 26,848.04 = 11,902.26 : x
  2. Step 2: Convert to fraction form
    19,458.69/26,848.04 = 11,902.26/x
  3. Step 3: Cross multiply
    19,458.69x = 26,848.04 × 11,902.26
  4. Step 4: Simplify right side
    19,458.69x = 319,552,322.81
  5. Step 5: Solve for x
    x = 319,552,322.81/19,458.69
  6. Step 6: Final answer
    x = 16,422.09

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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.