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Finding the Fourth Proportional to 18,790.48, 25,929.48 and 10,832.40

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Solution

The fourth proportional to 18,790.48, 25,929.48 and 10,832.40 is: 14,947.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,790.48 : 25,929.48 = 10,832.40 : x
  2. Step 2: Convert to fraction form
    18,790.48/25,929.48 = 10,832.40/x
  3. Step 3: Cross multiply
    18,790.48x = 25,929.48 × 10,832.40
  4. Step 4: Simplify right side
    18,790.48x = 280,878,499.15
  5. Step 5: Solve for x
    x = 280,878,499.15/18,790.48
  6. Step 6: Final answer
    x = 14,947.92

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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.