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Finding the Fourth Proportional to 9,059.85, 12,502.94 and 5,285.45

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Solution

The fourth proportional to 9,059.85, 12,502.94 and 5,285.45 is: 7,294.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,059.85 : 12,502.94 = 5,285.45 : x
  2. Step 2: Convert to fraction form
    9,059.85/12,502.94 = 5,285.45/x
  3. Step 3: Cross multiply
    9,059.85x = 12,502.94 × 5,285.45
  4. Step 4: Simplify right side
    9,059.85x = 66,083,664.22
  5. Step 5: Solve for x
    x = 66,083,664.22/9,059.85
  6. Step 6: Final answer
    x = 7,294.12

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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.