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Finding the Fourth Proportional to 61,638.64, 85,061.28 and 33,344.35

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Solution

The fourth proportional to 61,638.64, 85,061.28 and 33,344.35 is: 46,015.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,638.64 : 85,061.28 = 33,344.35 : x
  2. Step 2: Convert to fraction form
    61,638.64/85,061.28 = 33,344.35/x
  3. Step 3: Cross multiply
    61,638.64x = 85,061.28 × 33,344.35
  4. Step 4: Simplify right side
    61,638.64x = 2,836,313,091.77
  5. Step 5: Solve for x
    x = 2,836,313,091.77/61,638.64
  6. Step 6: Final answer
    x = 46,015.18

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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.