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Finding the Fourth Proportional to 60,609.45, 90,928.48 and 19,056.45

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Solution

The fourth proportional to 60,609.45, 90,928.48 and 19,056.45 is: 28,589.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,609.45 : 90,928.48 = 19,056.45 : x
  2. Step 2: Convert to fraction form
    60,609.45/90,928.48 = 19,056.45/x
  3. Step 3: Cross multiply
    60,609.45x = 90,928.48 × 19,056.45
  4. Step 4: Simplify right side
    60,609.45x = 1,732,774,032.70
  5. Step 5: Solve for x
    x = 1,732,774,032.70/60,609.45
  6. Step 6: Final answer
    x = 28,589.17

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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.