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Finding the Fourth Proportional to 35,915.26, 53,872.85 and 9,619.28

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Solution

The fourth proportional to 35,915.26, 53,872.85 and 9,619.28 is: 14,428.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,915.26 : 53,872.85 = 9,619.28 : x
  2. Step 2: Convert to fraction form
    35,915.26/53,872.85 = 9,619.28/x
  3. Step 3: Cross multiply
    35,915.26x = 53,872.85 × 9,619.28
  4. Step 4: Simplify right side
    35,915.26x = 518,217,980.45
  5. Step 5: Solve for x
    x = 518,217,980.45/35,915.26
  6. Step 6: Final answer
    x = 14,428.91

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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.