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Finding the Fourth Proportional to 66,203.30, 91,358.63 and 37,525.60

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Solution

The fourth proportional to 66,203.30, 91,358.63 and 37,525.60 is: 51,784.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,203.30 : 91,358.63 = 37,525.60 : x
  2. Step 2: Convert to fraction form
    66,203.30/91,358.63 = 37,525.60/x
  3. Step 3: Cross multiply
    66,203.30x = 91,358.63 × 37,525.60
  4. Step 4: Simplify right side
    66,203.30x = 3,428,287,941.25
  5. Step 5: Solve for x
    x = 3,428,287,941.25/66,203.30
  6. Step 6: Final answer
    x = 51,784.25

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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.