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Finding the Fourth Proportional to 19,938.80, 29,852.80 and 10,048.08

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Solution

The fourth proportional to 19,938.80, 29,852.80 and 10,048.08 is: 15,044.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,938.80 : 29,852.80 = 10,048.08 : x
  2. Step 2: Convert to fraction form
    19,938.80/29,852.80 = 10,048.08/x
  3. Step 3: Cross multiply
    19,938.80x = 29,852.80 × 10,048.08
  4. Step 4: Simplify right side
    19,938.80x = 299,963,322.62
  5. Step 5: Solve for x
    x = 299,963,322.62/19,938.80
  6. Step 6: Final answer
    x = 15,044.20

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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.