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Finding the Fourth Proportional to 19,762.72, 29,649.92 and 9,360.16

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Solution

The fourth proportional to 19,762.72, 29,649.92 and 9,360.16 is: 14,043.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,762.72 : 29,649.92 = 9,360.16 : x
  2. Step 2: Convert to fraction form
    19,762.72/29,649.92 = 9,360.16/x
  3. Step 3: Cross multiply
    19,762.72x = 29,649.92 × 9,360.16
  4. Step 4: Simplify right side
    19,762.72x = 277,527,995.19
  5. Step 5: Solve for x
    x = 277,527,995.19/19,762.72
  6. Step 6: Final answer
    x = 14,043.01

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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.