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Finding the Fourth Proportional to 12,700.75, 19,051.26 and 3,466.75

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Solution

The fourth proportional to 12,700.75, 19,051.26 and 3,466.75 is: 5,200.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,700.75 : 19,051.26 = 3,466.75 : x
  2. Step 2: Convert to fraction form
    12,700.75/19,051.26 = 3,466.75/x
  3. Step 3: Cross multiply
    12,700.75x = 19,051.26 × 3,466.75
  4. Step 4: Simplify right side
    12,700.75x = 66,045,955.61
  5. Step 5: Solve for x
    x = 66,045,955.61/12,700.75
  6. Step 6: Final answer
    x = 5,200.16

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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.