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Finding the Fourth Proportional to 66,155.68, 91,295.27 and 35,940.99

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Solution

The fourth proportional to 66,155.68, 91,295.27 and 35,940.99 is: 49,598.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,155.68 : 91,295.27 = 35,940.99 : x
  2. Step 2: Convert to fraction form
    66,155.68/91,295.27 = 35,940.99/x
  3. Step 3: Cross multiply
    66,155.68x = 91,295.27 × 35,940.99
  4. Step 4: Simplify right side
    66,155.68x = 3,281,242,200.66
  5. Step 5: Solve for x
    x = 3,281,242,200.66/66,155.68
  6. Step 6: Final answer
    x = 49,598.80

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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.