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Finding the Fourth Proportional to 9,243, 12,755.61 and 5,051.52

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Solution

The fourth proportional to 9,243, 12,755.61 and 5,051.52 is: 6,971.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,243 : 12,755.61 = 5,051.52 : x
  2. Step 2: Convert to fraction form
    9,243/12,755.61 = 5,051.52/x
  3. Step 3: Cross multiply
    9,243x = 12,755.61 × 5,051.52
  4. Step 4: Simplify right side
    9,243x = 64,435,219.03
  5. Step 5: Solve for x
    x = 64,435,219.03/9,243
  6. Step 6: Final answer
    x = 6,971.25

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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.