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Finding the Fourth Proportional to 61,710.75, 85,160.88 and 33,416.46

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Solution

The fourth proportional to 61,710.75, 85,160.88 and 33,416.46 is: 46,114.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,710.75 : 85,160.88 = 33,416.46 : x
  2. Step 2: Convert to fraction form
    61,710.75/85,160.88 = 33,416.46/x
  3. Step 3: Cross multiply
    61,710.75x = 85,160.88 × 33,416.46
  4. Step 4: Simplify right side
    61,710.75x = 2,845,775,140.08
  5. Step 5: Solve for x
    x = 2,845,775,140.08/61,710.75
  6. Step 6: Final answer
    x = 46,114.74

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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.