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Finding the Fourth Proportional to 36,347.51, 54,520.90 and 12,655.01

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Solution

The fourth proportional to 36,347.51, 54,520.90 and 12,655.01 is: 18,982.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,347.51 : 54,520.90 = 12,655.01 : x
  2. Step 2: Convert to fraction form
    36,347.51/54,520.90 = 12,655.01/x
  3. Step 3: Cross multiply
    36,347.51x = 54,520.90 × 12,655.01
  4. Step 4: Simplify right side
    36,347.51x = 689,962,639.37
  5. Step 5: Solve for x
    x = 689,962,639.37/36,347.51
  6. Step 6: Final answer
    x = 18,982.39

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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.