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Finding the Fourth Proportional to 35,405.48, 48,857.68 and 19,486.87

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Solution

The fourth proportional to 35,405.48, 48,857.68 and 19,486.87 is: 26,890.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,405.48 : 48,857.68 = 19,486.87 : x
  2. Step 2: Convert to fraction form
    35,405.48/48,857.68 = 19,486.87/x
  3. Step 3: Cross multiply
    35,405.48x = 48,857.68 × 19,486.87
  4. Step 4: Simplify right side
    35,405.48x = 952,083,258.66
  5. Step 5: Solve for x
    x = 952,083,258.66/35,405.48
  6. Step 6: Final answer
    x = 26,890.84

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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.