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Finding the Fourth Proportional to 14,656.53, 21,985.03 and 4,126.80

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Solution

The fourth proportional to 14,656.53, 21,985.03 and 4,126.80 is: 6,190.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,656.53 : 21,985.03 = 4,126.80 : x
  2. Step 2: Convert to fraction form
    14,656.53/21,985.03 = 4,126.80/x
  3. Step 3: Cross multiply
    14,656.53x = 21,985.03 × 4,126.80
  4. Step 4: Simplify right side
    14,656.53x = 90,727,859.60
  5. Step 5: Solve for x
    x = 90,727,859.60/14,656.53
  6. Step 6: Final answer
    x = 6,190.27

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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.