Home / 65,555.79-98,331.14-18,808.67

Finding the Fourth Proportional to 65,555.79, 98,331.14 and 18,808.67

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Solution

The fourth proportional to 65,555.79, 98,331.14 and 18,808.67 is: 28,212.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,555.79 : 98,331.14 = 18,808.67 : x
  2. Step 2: Convert to fraction form
    65,555.79/98,331.14 = 18,808.67/x
  3. Step 3: Cross multiply
    65,555.79x = 98,331.14 × 18,808.67
  4. Step 4: Simplify right side
    65,555.79x = 1,849,477,377.28
  5. Step 5: Solve for x
    x = 1,849,477,377.28/65,555.79
  6. Step 6: Final answer
    x = 28,212.27

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.