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Finding the Fourth Proportional to 8,555.64, 11,803.50 and 5,017.56

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Solution

The fourth proportional to 8,555.64, 11,803.50 and 5,017.56 is: 6,922.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,555.64 : 11,803.50 = 5,017.56 : x
  2. Step 2: Convert to fraction form
    8,555.64/11,803.50 = 5,017.56/x
  3. Step 3: Cross multiply
    8,555.64x = 11,803.50 × 5,017.56
  4. Step 4: Simplify right side
    8,555.64x = 59,224,769.46
  5. Step 5: Solve for x
    x = 59,224,769.46/8,555.64
  6. Step 6: Final answer
    x = 6,922.31

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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.