Home / 19,666.63-29,502.36-7,192.53

Finding the Fourth Proportional to 19,666.63, 29,502.36 and 7,192.53

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Solution

The fourth proportional to 19,666.63, 29,502.36 and 7,192.53 is: 10,789.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,666.63 : 29,502.36 = 7,192.53 : x
  2. Step 2: Convert to fraction form
    19,666.63/29,502.36 = 7,192.53/x
  3. Step 3: Cross multiply
    19,666.63x = 29,502.36 × 7,192.53
  4. Step 4: Simplify right side
    19,666.63x = 212,196,609.37
  5. Step 5: Solve for x
    x = 212,196,609.37/19,666.63
  6. Step 6: Final answer
    x = 10,789.68

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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.