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Finding the Fourth Proportional to 10,810.56, 16,215.84 and 4,654.56

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Solution

The fourth proportional to 10,810.56, 16,215.84 and 4,654.56 is: 6,981.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,810.56 : 16,215.84 = 4,654.56 : x
  2. Step 2: Convert to fraction form
    10,810.56/16,215.84 = 4,654.56/x
  3. Step 3: Cross multiply
    10,810.56x = 16,215.84 × 4,654.56
  4. Step 4: Simplify right side
    10,810.56x = 75,477,600.23
  5. Step 5: Solve for x
    x = 75,477,600.23/10,810.56
  6. Step 6: Final answer
    x = 6,981.84

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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.