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Finding the Fourth Proportional to 14,261.54, 19,680.98 and 7,973.91

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Solution

The fourth proportional to 14,261.54, 19,680.98 and 7,973.91 is: 11,004.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,261.54 : 19,680.98 = 7,973.91 : x
  2. Step 2: Convert to fraction form
    14,261.54/19,680.98 = 7,973.91/x
  3. Step 3: Cross multiply
    14,261.54x = 19,680.98 × 7,973.91
  4. Step 4: Simplify right side
    14,261.54x = 156,934,323.36
  5. Step 5: Solve for x
    x = 156,934,323.36/14,261.54
  6. Step 6: Final answer
    x = 11,004.03

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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.