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Finding the Fourth Proportional to 28,214.56, 42,341.32 and 9,746.56

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Solution

The fourth proportional to 28,214.56, 42,341.32 and 9,746.56 is: 14,626.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,214.56 : 42,341.32 = 9,746.56 : x
  2. Step 2: Convert to fraction form
    28,214.56/42,341.32 = 9,746.56/x
  3. Step 3: Cross multiply
    28,214.56x = 42,341.32 × 9,746.56
  4. Step 4: Simplify right side
    28,214.56x = 412,682,167.13
  5. Step 5: Solve for x
    x = 412,682,167.13/28,214.56
  6. Step 6: Final answer
    x = 14,626.57

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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.