Home / 65,817.91-90,799.86-38,580.19

Finding the Fourth Proportional to 65,817.91, 90,799.86 and 38,580.19

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Solution

The fourth proportional to 65,817.91, 90,799.86 and 38,580.19 is: 53,223.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,817.91 : 90,799.86 = 38,580.19 : x
  2. Step 2: Convert to fraction form
    65,817.91/90,799.86 = 38,580.19/x
  3. Step 3: Cross multiply
    65,817.91x = 90,799.86 × 38,580.19
  4. Step 4: Simplify right side
    65,817.91x = 3,503,075,623.77
  5. Step 5: Solve for x
    x = 3,503,075,623.77/65,817.91
  6. Step 6: Final answer
    x = 53,223.74

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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.