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Finding the Fourth Proportional to 18,969.96, 26,181.18 and 10,587

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Solution

The fourth proportional to 18,969.96, 26,181.18 and 10,587 is: 14,611.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,969.96 : 26,181.18 = 10,587 : x
  2. Step 2: Convert to fraction form
    18,969.96/26,181.18 = 10,587/x
  3. Step 3: Cross multiply
    18,969.96x = 26,181.18 × 10,587
  4. Step 4: Simplify right side
    18,969.96x = 277,180,152.66
  5. Step 5: Solve for x
    x = 277,180,152.66/18,969.96
  6. Step 6: Final answer
    x = 14,611.53

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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.