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Finding the Fourth Proportional to 19,164.92, 26,447.40 and 10,666.92

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Solution

The fourth proportional to 19,164.92, 26,447.40 and 10,666.92 is: 14,720.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,164.92 : 26,447.40 = 10,666.92 : x
  2. Step 2: Convert to fraction form
    19,164.92/26,447.40 = 10,666.92/x
  3. Step 3: Cross multiply
    19,164.92x = 26,447.40 × 10,666.92
  4. Step 4: Simplify right side
    19,164.92x = 282,112,300.01
  5. Step 5: Solve for x
    x = 282,112,300.01/19,164.92
  6. Step 6: Final answer
    x = 14,720.24

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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.