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Finding the Fourth Proportional to 60,609.16, 90,928.26 and 19,056.16

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Solution

The fourth proportional to 60,609.16, 90,928.26 and 19,056.16 is: 28,588.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,609.16 : 90,928.26 = 19,056.16 : x
  2. Step 2: Convert to fraction form
    60,609.16/90,928.26 = 19,056.16/x
  3. Step 3: Cross multiply
    60,609.16x = 90,928.26 × 19,056.16
  4. Step 4: Simplify right side
    60,609.16x = 1,732,743,471.08
  5. Step 5: Solve for x
    x = 1,732,743,471.08/60,609.16
  6. Step 6: Final answer
    x = 28,588.81

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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.