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Finding the Fourth Proportional to 40,698.48, 61,053.84 and 14,403.48

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Solution

The fourth proportional to 40,698.48, 61,053.84 and 14,403.48 is: 21,607.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,698.48 : 61,053.84 = 14,403.48 : x
  2. Step 2: Convert to fraction form
    40,698.48/61,053.84 = 14,403.48/x
  3. Step 3: Cross multiply
    40,698.48x = 61,053.84 × 14,403.48
  4. Step 4: Simplify right side
    40,698.48x = 879,387,763.36
  5. Step 5: Solve for x
    x = 879,387,763.36/40,698.48
  6. Step 6: Final answer
    x = 21,607.39

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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.