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Finding the Fourth Proportional to 8,610.99, 12,888.54 and 5,652.06

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Solution

The fourth proportional to 8,610.99, 12,888.54 and 5,652.06 is: 8,459.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,610.99 : 12,888.54 = 5,652.06 : x
  2. Step 2: Convert to fraction form
    8,610.99/12,888.54 = 5,652.06/x
  3. Step 3: Cross multiply
    8,610.99x = 12,888.54 × 5,652.06
  4. Step 4: Simplify right side
    8,610.99x = 72,846,801.39
  5. Step 5: Solve for x
    x = 72,846,801.39/8,610.99
  6. Step 6: Final answer
    x = 8,459.75

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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.