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Finding the Fourth Proportional to 18,886.03, 28,328.94 and 4,846.03

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Solution

The fourth proportional to 18,886.03, 28,328.94 and 4,846.03 is: 7,269.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,886.03 : 28,328.94 = 4,846.03 : x
  2. Step 2: Convert to fraction form
    18,886.03/28,328.94 = 4,846.03/x
  3. Step 3: Cross multiply
    18,886.03x = 28,328.94 × 4,846.03
  4. Step 4: Simplify right side
    18,886.03x = 137,282,893.11
  5. Step 5: Solve for x
    x = 137,282,893.11/18,886.03
  6. Step 6: Final answer
    x = 7,269.02

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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.