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Finding the Fourth Proportional to 61,475.28, 84,805.29 and 37,560.30

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Solution

The fourth proportional to 61,475.28, 84,805.29 and 37,560.30 is: 51,814.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,475.28 : 84,805.29 = 37,560.30 : x
  2. Step 2: Convert to fraction form
    61,475.28/84,805.29 = 37,560.30/x
  3. Step 3: Cross multiply
    61,475.28x = 84,805.29 × 37,560.30
  4. Step 4: Simplify right side
    61,475.28x = 3,185,312,133.99
  5. Step 5: Solve for x
    x = 3,185,312,133.99/61,475.28
  6. Step 6: Final answer
    x = 51,814.52

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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.