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Finding the Fourth Proportional to 18,124.93, 25,032.66 and 12,477

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Solution

The fourth proportional to 18,124.93, 25,032.66 and 12,477 is: 17,232.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,124.93 : 25,032.66 = 12,477 : x
  2. Step 2: Convert to fraction form
    18,124.93/25,032.66 = 12,477/x
  3. Step 3: Cross multiply
    18,124.93x = 25,032.66 × 12,477
  4. Step 4: Simplify right side
    18,124.93x = 312,332,498.82
  5. Step 5: Solve for x
    x = 312,332,498.82/18,124.93
  6. Step 6: Final answer
    x = 17,232.21

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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.