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Finding the Fourth Proportional to 18,407.42, 27,569.59 and 8,525.94

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Solution

The fourth proportional to 18,407.42, 27,569.59 and 8,525.94 is: 12,769.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,407.42 : 27,569.59 = 8,525.94 : x
  2. Step 2: Convert to fraction form
    18,407.42/27,569.59 = 8,525.94/x
  3. Step 3: Cross multiply
    18,407.42x = 27,569.59 × 8,525.94
  4. Step 4: Simplify right side
    18,407.42x = 235,056,670.16
  5. Step 5: Solve for x
    x = 235,056,670.16/18,407.42
  6. Step 6: Final answer
    x = 12,769.67

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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.