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Finding the Fourth Proportional to 15,885.19, 23,821.71 and 7,558.80

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Solution

The fourth proportional to 15,885.19, 23,821.71 and 7,558.80 is: 11,335.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,885.19 : 23,821.71 = 7,558.80 : x
  2. Step 2: Convert to fraction form
    15,885.19/23,821.71 = 7,558.80/x
  3. Step 3: Cross multiply
    15,885.19x = 23,821.71 × 7,558.80
  4. Step 4: Simplify right side
    15,885.19x = 180,063,541.55
  5. Step 5: Solve for x
    x = 180,063,541.55/15,885.19
  6. Step 6: Final answer
    x = 11,335.31

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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.