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Finding the Fourth Proportional to 35,081.40, 48,409.65 and 19,971.06

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Solution

The fourth proportional to 35,081.40, 48,409.65 and 19,971.06 is: 27,558.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,081.40 : 48,409.65 = 19,971.06 : x
  2. Step 2: Convert to fraction form
    35,081.40/48,409.65 = 19,971.06/x
  3. Step 3: Cross multiply
    35,081.40x = 48,409.65 × 19,971.06
  4. Step 4: Simplify right side
    35,081.40x = 966,791,843.19
  5. Step 5: Solve for x
    x = 966,791,843.19/35,081.40
  6. Step 6: Final answer
    x = 27,558.53

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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.