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Finding the Fourth Proportional to 66,570.84, 91,868.49 and 36,357.05

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Solution

The fourth proportional to 66,570.84, 91,868.49 and 36,357.05 is: 50,173.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,570.84 : 91,868.49 = 36,357.05 : x
  2. Step 2: Convert to fraction form
    66,570.84/91,868.49 = 36,357.05/x
  3. Step 3: Cross multiply
    66,570.84x = 91,868.49 × 36,357.05
  4. Step 4: Simplify right side
    66,570.84x = 3,340,066,825.01
  5. Step 5: Solve for x
    x = 3,340,066,825.01/66,570.84
  6. Step 6: Final answer
    x = 50,173.12

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.