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Finding the Fourth Proportional to 61,281.92, 84,555.92 and 35,776.70

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Solution

The fourth proportional to 61,281.92, 84,555.92 and 35,776.70 is: 49,364.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,281.92 : 84,555.92 = 35,776.70 : x
  2. Step 2: Convert to fraction form
    61,281.92/84,555.92 = 35,776.70/x
  3. Step 3: Cross multiply
    61,281.92x = 84,555.92 × 35,776.70
  4. Step 4: Simplify right side
    61,281.92x = 3,025,131,783.06
  5. Step 5: Solve for x
    x = 3,025,131,783.06/61,281.92
  6. Step 6: Final answer
    x = 49,364.18

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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.