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Finding the Fourth Proportional to 18,807.76, 25,957.36 and 10,848.32

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Solution

The fourth proportional to 18,807.76, 25,957.36 and 10,848.32 is: 14,972.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,807.76 : 25,957.36 = 10,848.32 : x
  2. Step 2: Convert to fraction form
    18,807.76/25,957.36 = 10,848.32/x
  3. Step 3: Cross multiply
    18,807.76x = 25,957.36 × 10,848.32
  4. Step 4: Simplify right side
    18,807.76x = 281,593,747.64
  5. Step 5: Solve for x
    x = 281,593,747.64/18,807.76
  6. Step 6: Final answer
    x = 14,972.21

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.