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Finding the Fourth Proportional to 35,710.65, 53,570.88 and 12,020.04

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Solution

The fourth proportional to 35,710.65, 53,570.88 and 12,020.04 is: 18,031.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,710.65 : 53,570.88 = 12,020.04 : x
  2. Step 2: Convert to fraction form
    35,710.65/53,570.88 = 12,020.04/x
  3. Step 3: Cross multiply
    35,710.65x = 53,570.88 × 12,020.04
  4. Step 4: Simplify right side
    35,710.65x = 643,924,120.44
  5. Step 5: Solve for x
    x = 643,924,120.44/35,710.65
  6. Step 6: Final answer
    x = 18,031.71

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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.