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Finding the Fourth Proportional to 66,355.75, 91,570.94 and 36,547.75

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Solution

The fourth proportional to 66,355.75, 91,570.94 and 36,547.75 is: 50,435.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,355.75 : 91,570.94 = 36,547.75 : x
  2. Step 2: Convert to fraction form
    66,355.75/91,570.94 = 36,547.75/x
  3. Step 3: Cross multiply
    66,355.75x = 91,570.94 × 36,547.75
  4. Step 4: Simplify right side
    66,355.75x = 3,346,711,822.39
  5. Step 5: Solve for x
    x = 3,346,711,822.39/66,355.75
  6. Step 6: Final answer
    x = 50,435.90

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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.