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Finding the Fourth Proportional to 16,888.71, 23,291.28 and 10,914.12

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Solution

The fourth proportional to 16,888.71, 23,291.28 and 10,914.12 is: 15,051.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,888.71 : 23,291.28 = 10,914.12 : x
  2. Step 2: Convert to fraction form
    16,888.71/23,291.28 = 10,914.12/x
  3. Step 3: Cross multiply
    16,888.71x = 23,291.28 × 10,914.12
  4. Step 4: Simplify right side
    16,888.71x = 254,203,824.87
  5. Step 5: Solve for x
    x = 254,203,824.87/16,888.71
  6. Step 6: Final answer
    x = 15,051.70

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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.