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Finding the Fourth Proportional to 61,485.60, 84,825.49 and 37,570.76

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Solution

The fourth proportional to 61,485.60, 84,825.49 and 37,570.76 is: 51,832.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,485.60 : 84,825.49 = 37,570.76 : x
  2. Step 2: Convert to fraction form
    61,485.60/84,825.49 = 37,570.76/x
  3. Step 3: Cross multiply
    61,485.60x = 84,825.49 × 37,570.76
  4. Step 4: Simplify right side
    61,485.60x = 3,186,958,126.67
  5. Step 5: Solve for x
    x = 3,186,958,126.67/61,485.60
  6. Step 6: Final answer
    x = 51,832.59

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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.