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Finding the Fourth Proportional to 58,790.21, 81,103.68 and 34,903.31

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Solution

The fourth proportional to 58,790.21, 81,103.68 and 34,903.31 is: 48,150.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,790.21 : 81,103.68 = 34,903.31 : x
  2. Step 2: Convert to fraction form
    58,790.21/81,103.68 = 34,903.31/x
  3. Step 3: Cross multiply
    58,790.21x = 81,103.68 × 34,903.31
  4. Step 4: Simplify right side
    58,790.21x = 2,830,786,479.66
  5. Step 5: Solve for x
    x = 2,830,786,479.66/58,790.21
  6. Step 6: Final answer
    x = 48,150.65

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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.