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Finding the Fourth Proportional to 14,681.01, 20,239.95 and 9,957.09

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Solution

The fourth proportional to 14,681.01, 20,239.95 and 9,957.09 is: 13,727.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,681.01 : 20,239.95 = 9,957.09 : x
  2. Step 2: Convert to fraction form
    14,681.01/20,239.95 = 9,957.09/x
  3. Step 3: Cross multiply
    14,681.01x = 20,239.95 × 9,957.09
  4. Step 4: Simplify right side
    14,681.01x = 201,531,003.75
  5. Step 5: Solve for x
    x = 201,531,003.75/14,681.01
  6. Step 6: Final answer
    x = 13,727.33

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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.