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Finding the Fourth Proportional to 18,807.40, 25,956.98 and 10,848.07

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Solution

The fourth proportional to 18,807.40, 25,956.98 and 10,848.07 is: 14,971.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,807.40 : 25,956.98 = 10,848.07 : x
  2. Step 2: Convert to fraction form
    18,807.40/25,956.98 = 10,848.07/x
  3. Step 3: Cross multiply
    18,807.40x = 25,956.98 × 10,848.07
  4. Step 4: Simplify right side
    18,807.40x = 281,583,136.03
  5. Step 5: Solve for x
    x = 281,583,136.03/18,807.40
  6. Step 6: Final answer
    x = 14,971.93

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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.