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Finding the Fourth Proportional to 17,775.56, 26,647.70 and 7,254.42

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Solution

The fourth proportional to 17,775.56, 26,647.70 and 7,254.42 is: 10,875.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,775.56 : 26,647.70 = 7,254.42 : x
  2. Step 2: Convert to fraction form
    17,775.56/26,647.70 = 7,254.42/x
  3. Step 3: Cross multiply
    17,775.56x = 26,647.70 × 7,254.42
  4. Step 4: Simplify right side
    17,775.56x = 193,313,607.83
  5. Step 5: Solve for x
    x = 193,313,607.83/17,775.56
  6. Step 6: Final answer
    x = 10,875.25

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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.