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Finding the Fourth Proportional to 14,805.16, 20,403 and 10,606.12

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Solution

The fourth proportional to 14,805.16, 20,403 and 10,606.12 is: 14,616.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,805.16 : 20,403 = 10,606.12 : x
  2. Step 2: Convert to fraction form
    14,805.16/20,403 = 10,606.12/x
  3. Step 3: Cross multiply
    14,805.16x = 20,403 × 10,606.12
  4. Step 4: Simplify right side
    14,805.16x = 216,396,666.36
  5. Step 5: Solve for x
    x = 216,396,666.36/14,805.16
  6. Step 6: Final answer
    x = 14,616.30

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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.