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Finding the Fourth Proportional to 65,193.71, 90,009.18 and 44,809.65

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Solution

The fourth proportional to 65,193.71, 90,009.18 and 44,809.65 is: 61,866.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,193.71 : 90,009.18 = 44,809.65 : x
  2. Step 2: Convert to fraction form
    65,193.71/90,009.18 = 44,809.65/x
  3. Step 3: Cross multiply
    65,193.71x = 90,009.18 × 44,809.65
  4. Step 4: Simplify right side
    65,193.71x = 4,033,279,852.59
  5. Step 5: Solve for x
    x = 4,033,279,852.59/65,193.71
  6. Step 6: Final answer
    x = 61,866.09

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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.