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Finding the Fourth Proportional to 60,572.25, 90,859.19 and 19,019.25

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Solution

The fourth proportional to 60,572.25, 90,859.19 and 19,019.25 is: 28,529.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,572.25 : 90,859.19 = 19,019.25 : x
  2. Step 2: Convert to fraction form
    60,572.25/90,859.19 = 19,019.25/x
  3. Step 3: Cross multiply
    60,572.25x = 90,859.19 × 19,019.25
  4. Step 4: Simplify right side
    60,572.25x = 1,728,073,554.31
  5. Step 5: Solve for x
    x = 1,728,073,554.31/60,572.25
  6. Step 6: Final answer
    x = 28,529.13

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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.