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Finding the Fourth Proportional to 13,762.76, 20,644.14 and 5,549

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Solution

The fourth proportional to 13,762.76, 20,644.14 and 5,549 is: 8,323.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,762.76 : 20,644.14 = 5,549 : x
  2. Step 2: Convert to fraction form
    13,762.76/20,644.14 = 5,549/x
  3. Step 3: Cross multiply
    13,762.76x = 20,644.14 × 5,549
  4. Step 4: Simplify right side
    13,762.76x = 114,554,332.86
  5. Step 5: Solve for x
    x = 114,554,332.86/13,762.76
  6. Step 6: Final answer
    x = 8,323.50

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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.