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Finding the Fourth Proportional to 35,880.62, 53,820.50 and 12,506.98

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Solution

The fourth proportional to 35,880.62, 53,820.50 and 12,506.98 is: 18,760.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,880.62 : 53,820.50 = 12,506.98 : x
  2. Step 2: Convert to fraction form
    35,880.62/53,820.50 = 12,506.98/x
  3. Step 3: Cross multiply
    35,880.62x = 53,820.50 × 12,506.98
  4. Step 4: Simplify right side
    35,880.62x = 673,131,917.09
  5. Step 5: Solve for x
    x = 673,131,917.09/35,880.62
  6. Step 6: Final answer
    x = 18,760.32

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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.