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Finding the Fourth Proportional to 69,820.04, 96,353.69 and 37,990.99

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Solution

The fourth proportional to 69,820.04, 96,353.69 and 37,990.99 is: 52,428.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,820.04 : 96,353.69 = 37,990.99 : x
  2. Step 2: Convert to fraction form
    69,820.04/96,353.69 = 37,990.99/x
  3. Step 3: Cross multiply
    69,820.04x = 96,353.69 × 37,990.99
  4. Step 4: Simplify right side
    69,820.04x = 3,660,572,073.25
  5. Step 5: Solve for x
    x = 3,660,572,073.25/69,820.04
  6. Step 6: Final answer
    x = 52,428.67

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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.