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Finding the Fourth Proportional to 18,859.60, 26,025.60 and 10,475.68

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Solution

The fourth proportional to 18,859.60, 26,025.60 and 10,475.68 is: 14,456.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,859.60 : 26,025.60 = 10,475.68 : x
  2. Step 2: Convert to fraction form
    18,859.60/26,025.60 = 10,475.68/x
  3. Step 3: Cross multiply
    18,859.60x = 26,025.60 × 10,475.68
  4. Step 4: Simplify right side
    18,859.60x = 272,635,857.41
  5. Step 5: Solve for x
    x = 272,635,857.41/18,859.60
  6. Step 6: Final answer
    x = 14,456.08

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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.