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Finding the Fourth Proportional to 28,552.53, 42,828.75 and 14,522.22

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Solution

The fourth proportional to 28,552.53, 42,828.75 and 14,522.22 is: 21,783.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,552.53 : 42,828.75 = 14,522.22 : x
  2. Step 2: Convert to fraction form
    28,552.53/42,828.75 = 14,522.22/x
  3. Step 3: Cross multiply
    28,552.53x = 42,828.75 × 14,522.22
  4. Step 4: Simplify right side
    28,552.53x = 621,968,529.83
  5. Step 5: Solve for x
    x = 621,968,529.83/28,552.53
  6. Step 6: Final answer
    x = 21,783.30

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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.