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Finding the Fourth Proportional to 84,969.60, 127,489.20 and 37,559.60

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Solution

The fourth proportional to 84,969.60, 127,489.20 and 37,559.60 is: 56,354.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,969.60 : 127,489.20 = 37,559.60 : x
  2. Step 2: Convert to fraction form
    84,969.60/127,489.20 = 37,559.60/x
  3. Step 3: Cross multiply
    84,969.60x = 127,489.20 × 37,559.60
  4. Step 4: Simplify right side
    84,969.60x = 4,788,443,356.32
  5. Step 5: Solve for x
    x = 4,788,443,356.32/84,969.60
  6. Step 6: Final answer
    x = 56,354.78

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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.