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Finding the Fourth Proportional to 18,390.98, 27,586.53 and 5,064.16

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Solution

The fourth proportional to 18,390.98, 27,586.53 and 5,064.16 is: 7,596.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,390.98 : 27,586.53 = 5,064.16 : x
  2. Step 2: Convert to fraction form
    18,390.98/27,586.53 = 5,064.16/x
  3. Step 3: Cross multiply
    18,390.98x = 27,586.53 × 5,064.16
  4. Step 4: Simplify right side
    18,390.98x = 139,702,601.76
  5. Step 5: Solve for x
    x = 139,702,601.76/18,390.98
  6. Step 6: Final answer
    x = 7,596.26

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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.