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Finding the Fourth Proportional to 18,586.40, 27,877.08 and 4,735.40

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Solution

The fourth proportional to 18,586.40, 27,877.08 and 4,735.40 is: 7,102.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,586.40 : 27,877.08 = 4,735.40 : x
  2. Step 2: Convert to fraction form
    18,586.40/27,877.08 = 4,735.40/x
  3. Step 3: Cross multiply
    18,586.40x = 27,877.08 × 4,735.40
  4. Step 4: Simplify right side
    18,586.40x = 132,009,124.63
  5. Step 5: Solve for x
    x = 132,009,124.63/18,586.40
  6. Step 6: Final answer
    x = 7,102.46

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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.