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Finding the Fourth Proportional to 19,555.93, 29,341.25 and 9,031

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Solution

The fourth proportional to 19,555.93, 29,341.25 and 9,031 is: 13,549.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,555.93 : 29,341.25 = 9,031 : x
  2. Step 2: Convert to fraction form
    19,555.93/29,341.25 = 9,031/x
  3. Step 3: Cross multiply
    19,555.93x = 29,341.25 × 9,031
  4. Step 4: Simplify right side
    19,555.93x = 264,980,828.75
  5. Step 5: Solve for x
    x = 264,980,828.75/19,555.93
  6. Step 6: Final answer
    x = 13,549.90

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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.