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Finding the Fourth Proportional to 55,652.66, 83,486.79 and 18,215.67

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Solution

The fourth proportional to 55,652.66, 83,486.79 and 18,215.67 is: 27,326.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,652.66 : 83,486.79 = 18,215.67 : x
  2. Step 2: Convert to fraction form
    55,652.66/83,486.79 = 18,215.67/x
  3. Step 3: Cross multiply
    55,652.66x = 83,486.79 × 18,215.67
  4. Step 4: Simplify right side
    55,652.66x = 1,520,767,816.00
  5. Step 5: Solve for x
    x = 1,520,767,816.00/55,652.66
  6. Step 6: Final answer
    x = 27,326.06

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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.