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Finding the Fourth Proportional to 14,059, 19,391.34 and 8,681.32

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Solution

The fourth proportional to 14,059, 19,391.34 and 8,681.32 is: 11,974.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,059 : 19,391.34 = 8,681.32 : x
  2. Step 2: Convert to fraction form
    14,059/19,391.34 = 8,681.32/x
  3. Step 3: Cross multiply
    14,059x = 19,391.34 × 8,681.32
  4. Step 4: Simplify right side
    14,059x = 168,342,427.77
  5. Step 5: Solve for x
    x = 168,342,427.77/14,059
  6. Step 6: Final answer
    x = 11,974.00

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.