Home / 35,985.24-53,977.86-12,611.67

Finding the Fourth Proportional to 35,985.24, 53,977.86 and 12,611.67

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Solution

The fourth proportional to 35,985.24, 53,977.86 and 12,611.67 is: 18,917.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,985.24 : 53,977.86 = 12,611.67 : x
  2. Step 2: Convert to fraction form
    35,985.24/53,977.86 = 12,611.67/x
  3. Step 3: Cross multiply
    35,985.24x = 53,977.86 × 12,611.67
  4. Step 4: Simplify right side
    35,985.24x = 680,750,957.63
  5. Step 5: Solve for x
    x = 680,750,957.63/35,985.24
  6. Step 6: Final answer
    x = 18,917.51

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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.