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Finding the Fourth Proportional to 19,220.16, 28,831.92 and 6,069.12

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Solution

The fourth proportional to 19,220.16, 28,831.92 and 6,069.12 is: 9,104.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,220.16 : 28,831.92 = 6,069.12 : x
  2. Step 2: Convert to fraction form
    19,220.16/28,831.92 = 6,069.12/x
  3. Step 3: Cross multiply
    19,220.16x = 28,831.92 × 6,069.12
  4. Step 4: Simplify right side
    19,220.16x = 174,984,382.31
  5. Step 5: Solve for x
    x = 174,984,382.31/19,220.16
  6. Step 6: Final answer
    x = 9,104.21

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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.