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Finding the Fourth Proportional to 18,124.80, 25,008 and 10,673.28

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Solution

The fourth proportional to 18,124.80, 25,008 and 10,673.28 is: 14,726.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,124.80 : 25,008 = 10,673.28 : x
  2. Step 2: Convert to fraction form
    18,124.80/25,008 = 10,673.28/x
  3. Step 3: Cross multiply
    18,124.80x = 25,008 × 10,673.28
  4. Step 4: Simplify right side
    18,124.80x = 266,917,386.24
  5. Step 5: Solve for x
    x = 266,917,386.24/18,124.80
  6. Step 6: Final answer
    x = 14,726.64

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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.