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Finding the Fourth Proportional to 13,841.55, 20,763.54 and 5,076.54

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Solution

The fourth proportional to 13,841.55, 20,763.54 and 5,076.54 is: 7,615.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,841.55 : 20,763.54 = 5,076.54 : x
  2. Step 2: Convert to fraction form
    13,841.55/20,763.54 = 5,076.54/x
  3. Step 3: Cross multiply
    13,841.55x = 20,763.54 × 5,076.54
  4. Step 4: Simplify right side
    13,841.55x = 105,406,941.35
  5. Step 5: Solve for x
    x = 105,406,941.35/13,841.55
  6. Step 6: Final answer
    x = 7,615.26

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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.