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Finding the Fourth Proportional to 65,915.34, 98,872.27 and 15,995.99

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Solution

The fourth proportional to 65,915.34, 98,872.27 and 15,995.99 is: 23,993.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,915.34 : 98,872.27 = 15,995.99 : x
  2. Step 2: Convert to fraction form
    65,915.34/98,872.27 = 15,995.99/x
  3. Step 3: Cross multiply
    65,915.34x = 98,872.27 × 15,995.99
  4. Step 4: Simplify right side
    65,915.34x = 1,581,559,307.85
  5. Step 5: Solve for x
    x = 1,581,559,307.85/65,915.34
  6. Step 6: Final answer
    x = 23,993.80

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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.