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Finding the Fourth Proportional to 34,642.96, 51,935.28 and 13,855.12

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Solution

The fourth proportional to 34,642.96, 51,935.28 and 13,855.12 is: 20,771.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,642.96 : 51,935.28 = 13,855.12 : x
  2. Step 2: Convert to fraction form
    34,642.96/51,935.28 = 13,855.12/x
  3. Step 3: Cross multiply
    34,642.96x = 51,935.28 × 13,855.12
  4. Step 4: Simplify right side
    34,642.96x = 719,569,536.63
  5. Step 5: Solve for x
    x = 719,569,536.63/34,642.96
  6. Step 6: Final answer
    x = 20,771.02

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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.