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Finding the Fourth Proportional to 18,446.40, 27,669.66 and 4,595.40

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Solution

The fourth proportional to 18,446.40, 27,669.66 and 4,595.40 is: 6,893.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,446.40 : 27,669.66 = 4,595.40 : x
  2. Step 2: Convert to fraction form
    18,446.40/27,669.66 = 4,595.40/x
  3. Step 3: Cross multiply
    18,446.40x = 27,669.66 × 4,595.40
  4. Step 4: Simplify right side
    18,446.40x = 127,153,155.56
  5. Step 5: Solve for x
    x = 127,153,155.56/18,446.40
  6. Step 6: Final answer
    x = 6,893.11

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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.