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Finding the Fourth Proportional to 61,471.57, 84,838.85 and 34,619.33

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Solution

The fourth proportional to 61,471.57, 84,838.85 and 34,619.33 is: 47,779.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,471.57 : 84,838.85 = 34,619.33 : x
  2. Step 2: Convert to fraction form
    61,471.57/84,838.85 = 34,619.33/x
  3. Step 3: Cross multiply
    61,471.57x = 84,838.85 × 34,619.33
  4. Step 4: Simplify right side
    61,471.57x = 2,937,064,144.97
  5. Step 5: Solve for x
    x = 2,937,064,144.97/61,471.57
  6. Step 6: Final answer
    x = 47,779.23

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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.