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Finding the Fourth Proportional to 18,509.55, 27,747.53 and 9,614.48

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Solution

The fourth proportional to 18,509.55, 27,747.53 and 9,614.48 is: 14,412.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,509.55 : 27,747.53 = 9,614.48 : x
  2. Step 2: Convert to fraction form
    18,509.55/27,747.53 = 9,614.48/x
  3. Step 3: Cross multiply
    18,509.55x = 27,747.53 × 9,614.48
  4. Step 4: Simplify right side
    18,509.55x = 266,778,024.16
  5. Step 5: Solve for x
    x = 266,778,024.16/18,509.55
  6. Step 6: Final answer
    x = 14,412.99

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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.