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Finding the Fourth Proportional to 19,615.98, 27,070.59 and 10,664.09

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Solution

The fourth proportional to 19,615.98, 27,070.59 and 10,664.09 is: 14,716.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,615.98 : 27,070.59 = 10,664.09 : x
  2. Step 2: Convert to fraction form
    19,615.98/27,070.59 = 10,664.09/x
  3. Step 3: Cross multiply
    19,615.98x = 27,070.59 × 10,664.09
  4. Step 4: Simplify right side
    19,615.98x = 288,683,208.11
  5. Step 5: Solve for x
    x = 288,683,208.11/19,615.98
  6. Step 6: Final answer
    x = 14,716.74

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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.