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Finding the Fourth Proportional to 18,852.96, 26,002.48 and 13,815.28

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Solution

The fourth proportional to 18,852.96, 26,002.48 and 13,815.28 is: 19,054.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,852.96 : 26,002.48 = 13,815.28 : x
  2. Step 2: Convert to fraction form
    18,852.96/26,002.48 = 13,815.28/x
  3. Step 3: Cross multiply
    18,852.96x = 26,002.48 × 13,815.28
  4. Step 4: Simplify right side
    18,852.96x = 359,231,541.89
  5. Step 5: Solve for x
    x = 359,231,541.89/18,852.96
  6. Step 6: Final answer
    x = 19,054.38

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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.