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Finding the Fourth Proportional to 60,522.75, 90,798.71 and 18,969.75

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Solution

The fourth proportional to 60,522.75, 90,798.71 and 18,969.75 is: 28,459.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,522.75 : 90,798.71 = 18,969.75 : x
  2. Step 2: Convert to fraction form
    60,522.75/90,798.71 = 18,969.75/x
  3. Step 3: Cross multiply
    60,522.75x = 90,798.71 × 18,969.75
  4. Step 4: Simplify right side
    60,522.75x = 1,722,428,734.17
  5. Step 5: Solve for x
    x = 1,722,428,734.17/60,522.75
  6. Step 6: Final answer
    x = 28,459.19

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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.