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Finding the Fourth Proportional to 10,957.44, 16,436.88 and 3,938.88

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Solution

The fourth proportional to 10,957.44, 16,436.88 and 3,938.88 is: 5,908.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,957.44 : 16,436.88 = 3,938.88 : x
  2. Step 2: Convert to fraction form
    10,957.44/16,436.88 = 3,938.88/x
  3. Step 3: Cross multiply
    10,957.44x = 16,436.88 × 3,938.88
  4. Step 4: Simplify right side
    10,957.44x = 64,742,897.89
  5. Step 5: Solve for x
    x = 64,742,897.89/10,957.44
  6. Step 6: Final answer
    x = 5,908.58

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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.