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Finding the Fourth Proportional to 36,855.40, 55,280.52 and 9,153.40

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Solution

The fourth proportional to 36,855.40, 55,280.52 and 9,153.40 is: 13,729.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,855.40 : 55,280.52 = 9,153.40 : x
  2. Step 2: Convert to fraction form
    36,855.40/55,280.52 = 9,153.40/x
  3. Step 3: Cross multiply
    36,855.40x = 55,280.52 × 9,153.40
  4. Step 4: Simplify right side
    36,855.40x = 506,004,711.77
  5. Step 5: Solve for x
    x = 506,004,711.77/36,855.40
  6. Step 6: Final answer
    x = 13,729.46

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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.