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Finding the Fourth Proportional to 61,705.76, 85,154.01 and 33,411.38

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Solution

The fourth proportional to 61,705.76, 85,154.01 and 33,411.38 is: 46,107.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,705.76 : 85,154.01 = 33,411.38 : x
  2. Step 2: Convert to fraction form
    61,705.76/85,154.01 = 33,411.38/x
  3. Step 3: Cross multiply
    61,705.76x = 85,154.01 × 33,411.38
  4. Step 4: Simplify right side
    61,705.76x = 2,845,112,986.63
  5. Step 5: Solve for x
    x = 2,845,112,986.63/61,705.76
  6. Step 6: Final answer
    x = 46,107.74

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Double scale
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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.