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Finding the Fourth Proportional to 23,210.80, 34,818.78 and 7,410.20

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Solution

The fourth proportional to 23,210.80, 34,818.78 and 7,410.20 is: 11,116.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,210.80 : 34,818.78 = 7,410.20 : x
  2. Step 2: Convert to fraction form
    23,210.80/34,818.78 = 7,410.20/x
  3. Step 3: Cross multiply
    23,210.80x = 34,818.78 × 7,410.20
  4. Step 4: Simplify right side
    23,210.80x = 258,014,123.56
  5. Step 5: Solve for x
    x = 258,014,123.56/23,210.80
  6. Step 6: Final answer
    x = 11,116.12

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.