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Finding the Fourth Proportional to 23,892.60, 35,795.70 and 21,127.80

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Solution

The fourth proportional to 23,892.60, 35,795.70 and 21,127.80 is: 31,653.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,892.60 : 35,795.70 = 21,127.80 : x
  2. Step 2: Convert to fraction form
    23,892.60/35,795.70 = 21,127.80/x
  3. Step 3: Cross multiply
    23,892.60x = 35,795.70 × 21,127.80
  4. Step 4: Simplify right side
    23,892.60x = 756,284,390.46
  5. Step 5: Solve for x
    x = 756,284,390.46/23,892.60
  6. Step 6: Final answer
    x = 31,653.50

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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.