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Finding the Fourth Proportional to 74,996.80, 112,496.40 and 19,592.80

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Solution

The fourth proportional to 74,996.80, 112,496.40 and 19,592.80 is: 29,389.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,996.80 : 112,496.40 = 19,592.80 : x
  2. Step 2: Convert to fraction form
    74,996.80/112,496.40 = 19,592.80/x
  3. Step 3: Cross multiply
    74,996.80x = 112,496.40 × 19,592.80
  4. Step 4: Simplify right side
    74,996.80x = 2,204,119,465.92
  5. Step 5: Solve for x
    x = 2,204,119,465.92/74,996.80
  6. Step 6: Final answer
    x = 29,389.51

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.