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Finding the Fourth Proportional to 12,430.92, 17,153.62 and 7,325.62

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Solution

The fourth proportional to 12,430.92, 17,153.62 and 7,325.62 is: 10,108.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,430.92 : 17,153.62 = 7,325.62 : x
  2. Step 2: Convert to fraction form
    12,430.92/17,153.62 = 7,325.62/x
  3. Step 3: Cross multiply
    12,430.92x = 17,153.62 × 7,325.62
  4. Step 4: Simplify right side
    12,430.92x = 125,660,901.74
  5. Step 5: Solve for x
    x = 125,660,901.74/12,430.92
  6. Step 6: Final answer
    x = 10,108.74

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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.