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Finding the Fourth Proportional to 21,941.95, 32,915.52 and 7,706.07

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Solution

The fourth proportional to 21,941.95, 32,915.52 and 7,706.07 is: 11,560.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,941.95 : 32,915.52 = 7,706.07 : x
  2. Step 2: Convert to fraction form
    21,941.95/32,915.52 = 7,706.07/x
  3. Step 3: Cross multiply
    21,941.95x = 32,915.52 × 7,706.07
  4. Step 4: Simplify right side
    21,941.95x = 253,649,301.21
  5. Step 5: Solve for x
    x = 253,649,301.21/21,941.95
  6. Step 6: Final answer
    x = 11,560.02

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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.