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Finding the Fourth Proportional to 45,981, 63,453.90 and 26,109

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Solution

The fourth proportional to 45,981, 63,453.90 and 26,109 is: 36,030.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,981 : 63,453.90 = 26,109 : x
  2. Step 2: Convert to fraction form
    45,981/63,453.90 = 26,109/x
  3. Step 3: Cross multiply
    45,981x = 63,453.90 × 26,109
  4. Step 4: Simplify right side
    45,981x = 1,656,717,875.10
  5. Step 5: Solve for x
    x = 1,656,717,875.10/45,981
  6. Step 6: Final answer
    x = 36,030.49

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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.