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Finding the Fourth Proportional to 23,576.40, 32,478.60 and 16,491.60

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Solution

The fourth proportional to 23,576.40, 32,478.60 and 16,491.60 is: 22,718.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,576.40 : 32,478.60 = 16,491.60 : x
  2. Step 2: Convert to fraction form
    23,576.40/32,478.60 = 16,491.60/x
  3. Step 3: Cross multiply
    23,576.40x = 32,478.60 × 16,491.60
  4. Step 4: Simplify right side
    23,576.40x = 535,624,079.76
  5. Step 5: Solve for x
    x = 535,624,079.76/23,576.40
  6. Step 6: Final answer
    x = 22,718.65

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.