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Finding the Fourth Proportional to 14,551.80, 21,820.50 and 6,755.64

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Solution

The fourth proportional to 14,551.80, 21,820.50 and 6,755.64 is: 10,130.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,551.80 : 21,820.50 = 6,755.64 : x
  2. Step 2: Convert to fraction form
    14,551.80/21,820.50 = 6,755.64/x
  3. Step 3: Cross multiply
    14,551.80x = 21,820.50 × 6,755.64
  4. Step 4: Simplify right side
    14,551.80x = 147,411,442.62
  5. Step 5: Solve for x
    x = 147,411,442.62/14,551.80
  6. Step 6: Final answer
    x = 10,130.12

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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.