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Finding the Fourth Proportional to 18,407.42, 27,615.54 and 5,928.60

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Solution

The fourth proportional to 18,407.42, 27,615.54 and 5,928.60 is: 8,894.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,407.42 : 27,615.54 = 5,928.60 : x
  2. Step 2: Convert to fraction form
    18,407.42/27,615.54 = 5,928.60/x
  3. Step 3: Cross multiply
    18,407.42x = 27,615.54 × 5,928.60
  4. Step 4: Simplify right side
    18,407.42x = 163,721,490.44
  5. Step 5: Solve for x
    x = 163,721,490.44/18,407.42
  6. Step 6: Final answer
    x = 8,894.32

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.