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Finding the Fourth Proportional to 21,585.72, 32,378.46 and 6,795.72

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Solution

The fourth proportional to 21,585.72, 32,378.46 and 6,795.72 is: 10,193.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,585.72 : 32,378.46 = 6,795.72 : x
  2. Step 2: Convert to fraction form
    21,585.72/32,378.46 = 6,795.72/x
  3. Step 3: Cross multiply
    21,585.72x = 32,378.46 × 6,795.72
  4. Step 4: Simplify right side
    21,585.72x = 220,034,948.19
  5. Step 5: Solve for x
    x = 220,034,948.19/21,585.72
  6. Step 6: Final answer
    x = 10,193.54

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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.