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Finding the Fourth Proportional to 35,956.47, 53,915.71 and 15,957.28

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Solution

The fourth proportional to 35,956.47, 53,915.71 and 15,957.28 is: 23,927.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,956.47 : 53,915.71 = 15,957.28 : x
  2. Step 2: Convert to fraction form
    35,956.47/53,915.71 = 15,957.28/x
  3. Step 3: Cross multiply
    35,956.47x = 53,915.71 × 15,957.28
  4. Step 4: Simplify right side
    35,956.47x = 860,348,080.87
  5. Step 5: Solve for x
    x = 860,348,080.87/35,956.47
  6. Step 6: Final answer
    x = 23,927.49

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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.