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Finding the Fourth Proportional to 14,061.06, 19,407.60 and 8,472.06

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Solution

The fourth proportional to 14,061.06, 19,407.60 and 8,472.06 is: 11,693.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,061.06 : 19,407.60 = 8,472.06 : x
  2. Step 2: Convert to fraction form
    14,061.06/19,407.60 = 8,472.06/x
  3. Step 3: Cross multiply
    14,061.06x = 19,407.60 × 8,472.06
  4. Step 4: Simplify right side
    14,061.06x = 164,422,351.66
  5. Step 5: Solve for x
    x = 164,422,351.66/14,061.06
  6. Step 6: Final answer
    x = 11,693.45

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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.