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Finding the Fourth Proportional to 23,486.40, 32,411.00 and 12,876.01

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Solution

The fourth proportional to 23,486.40, 32,411.00 and 12,876.01 is: 17,768.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,486.40 : 32,411.00 = 12,876.01 : x
  2. Step 2: Convert to fraction form
    23,486.40/32,411.00 = 12,876.01/x
  3. Step 3: Cross multiply
    23,486.40x = 32,411.00 × 12,876.01
  4. Step 4: Simplify right side
    23,486.40x = 417,324,311.27
  5. Step 5: Solve for x
    x = 417,324,311.27/23,486.40
  6. Step 6: Final answer
    x = 17,768.76

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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.