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Finding the Fourth Proportional to 9,430.43, 12,913.39 and 9,058.64

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Solution

The fourth proportional to 9,430.43, 12,913.39 and 9,058.64 is: 12,404.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,430.43 : 12,913.39 = 9,058.64 : x
  2. Step 2: Convert to fraction form
    9,430.43/12,913.39 = 9,058.64/x
  3. Step 3: Cross multiply
    9,430.43x = 12,913.39 × 9,058.64
  4. Step 4: Simplify right side
    9,430.43x = 116,977,751.19
  5. Step 5: Solve for x
    x = 116,977,751.19/9,430.43
  6. Step 6: Final answer
    x = 12,404.29

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.