Home / 65,578.04-90,498.74-35,770.04

Finding the Fourth Proportional to 65,578.04, 90,498.74 and 35,770.04

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Solution

The fourth proportional to 65,578.04, 90,498.74 and 35,770.04 is: 49,363.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,578.04 : 90,498.74 = 35,770.04 : x
  2. Step 2: Convert to fraction form
    65,578.04/90,498.74 = 35,770.04/x
  3. Step 3: Cross multiply
    65,578.04x = 90,498.74 × 35,770.04
  4. Step 4: Simplify right side
    65,578.04x = 3,237,143,549.75
  5. Step 5: Solve for x
    x = 3,237,143,549.75/65,578.04
  6. Step 6: Final answer
    x = 49,363.23

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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.