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Finding the Fourth Proportional to 12,980.88, 19,473.74 and 6,055.38

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Solution

The fourth proportional to 12,980.88, 19,473.74 and 6,055.38 is: 9,084.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,980.88 : 19,473.74 = 6,055.38 : x
  2. Step 2: Convert to fraction form
    12,980.88/19,473.74 = 6,055.38/x
  3. Step 3: Cross multiply
    12,980.88x = 19,473.74 × 6,055.38
  4. Step 4: Simplify right side
    12,980.88x = 117,920,895.72
  5. Step 5: Solve for x
    x = 117,920,895.72/12,980.88
  6. Step 6: Final answer
    x = 9,084.20

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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.