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Finding the Fourth Proportional to 18,763.16, 25,848.06 and 17,415.32

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Solution

The fourth proportional to 18,763.16, 25,848.06 and 17,415.32 is: 23,991.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,763.16 : 25,848.06 = 17,415.32 : x
  2. Step 2: Convert to fraction form
    18,763.16/25,848.06 = 17,415.32/x
  3. Step 3: Cross multiply
    18,763.16x = 25,848.06 × 17,415.32
  4. Step 4: Simplify right side
    18,763.16x = 450,152,236.28
  5. Step 5: Solve for x
    x = 450,152,236.28/18,763.16
  6. Step 6: Final answer
    x = 23,991.28

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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.