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Finding the Fourth Proportional to 15,595.80, 23,401.80 and 6,831.60

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Solution

The fourth proportional to 15,595.80, 23,401.80 and 6,831.60 is: 10,250.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,595.80 : 23,401.80 = 6,831.60 : x
  2. Step 2: Convert to fraction form
    15,595.80/23,401.80 = 6,831.60/x
  3. Step 3: Cross multiply
    15,595.80x = 23,401.80 × 6,831.60
  4. Step 4: Simplify right side
    15,595.80x = 159,871,736.88
  5. Step 5: Solve for x
    x = 159,871,736.88/15,595.80
  6. Step 6: Final answer
    x = 10,250.95

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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.