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Finding the Fourth Proportional to 29,151.30, 40,915.50 and 29,151.30

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Solution

The fourth proportional to 29,151.30, 40,915.50 and 29,151.30 is: 40,915.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,151.30 : 40,915.50 = 29,151.30 : x
  2. Step 2: Convert to fraction form
    29,151.30/40,915.50 = 29,151.30/x
  3. Step 3: Cross multiply
    29,151.30x = 40,915.50 × 29,151.30
  4. Step 4: Simplify right side
    29,151.30x = 1,192,740,015.15
  5. Step 5: Solve for x
    x = 1,192,740,015.15/29,151.30
  6. Step 6: Final answer
    x = 40,915.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.