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Finding the Fourth Proportional to 15,835.01, 21,852.02 and 8,761.43

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Solution

The fourth proportional to 15,835.01, 21,852.02 and 8,761.43 is: 12,090.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,835.01 : 21,852.02 = 8,761.43 : x
  2. Step 2: Convert to fraction form
    15,835.01/21,852.02 = 8,761.43/x
  3. Step 3: Cross multiply
    15,835.01x = 21,852.02 × 8,761.43
  4. Step 4: Simplify right side
    15,835.01x = 191,455,020.12
  5. Step 5: Solve for x
    x = 191,455,020.12/15,835.01
  6. Step 6: Final answer
    x = 12,090.61

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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.