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Finding the Fourth Proportional to 15,609.93, 23,383.95 and 7,278.48

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Solution

The fourth proportional to 15,609.93, 23,383.95 and 7,278.48 is: 10,903.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,609.93 : 23,383.95 = 7,278.48 : x
  2. Step 2: Convert to fraction form
    15,609.93/23,383.95 = 7,278.48/x
  3. Step 3: Cross multiply
    15,609.93x = 23,383.95 × 7,278.48
  4. Step 4: Simplify right side
    15,609.93x = 170,199,612.40
  5. Step 5: Solve for x
    x = 170,199,612.40/15,609.93
  6. Step 6: Final answer
    x = 10,903.29

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.