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Finding the Fourth Proportional to 14,490.52, 20,003.06 and 9,459.06

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Solution

The fourth proportional to 14,490.52, 20,003.06 and 9,459.06 is: 13,057.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,490.52 : 20,003.06 = 9,459.06 : x
  2. Step 2: Convert to fraction form
    14,490.52/20,003.06 = 9,459.06/x
  3. Step 3: Cross multiply
    14,490.52x = 20,003.06 × 9,459.06
  4. Step 4: Simplify right side
    14,490.52x = 189,210,144.72
  5. Step 5: Solve for x
    x = 189,210,144.72/14,490.52
  6. Step 6: Final answer
    x = 13,057.51

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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.