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Finding the Fourth Proportional to 35,506.78, 53,260.17 and 12,133.42

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Solution

The fourth proportional to 35,506.78, 53,260.17 and 12,133.42 is: 18,200.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,506.78 : 53,260.17 = 12,133.42 : x
  2. Step 2: Convert to fraction form
    35,506.78/53,260.17 = 12,133.42/x
  3. Step 3: Cross multiply
    35,506.78x = 53,260.17 × 12,133.42
  4. Step 4: Simplify right side
    35,506.78x = 646,228,011.88
  5. Step 5: Solve for x
    x = 646,228,011.88/35,506.78
  6. Step 6: Final answer
    x = 18,200.13

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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.