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Finding the Fourth Proportional to 14,609.48, 20,161.08 and 7,895.10

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Solution

The fourth proportional to 14,609.48, 20,161.08 and 7,895.10 is: 10,895.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,609.48 : 20,161.08 = 7,895.10 : x
  2. Step 2: Convert to fraction form
    14,609.48/20,161.08 = 7,895.10/x
  3. Step 3: Cross multiply
    14,609.48x = 20,161.08 × 7,895.10
  4. Step 4: Simplify right side
    14,609.48x = 159,173,797.52
  5. Step 5: Solve for x
    x = 159,173,797.52/14,609.48
  6. Step 6: Final answer
    x = 10,895.24

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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.