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Finding the Fourth Proportional to 53,303.22, 79,962.03 and 19,564.74

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Solution

The fourth proportional to 53,303.22, 79,962.03 and 19,564.74 is: 29,349.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,303.22 : 79,962.03 = 19,564.74 : x
  2. Step 2: Convert to fraction form
    53,303.22/79,962.03 = 19,564.74/x
  3. Step 3: Cross multiply
    53,303.22x = 79,962.03 × 19,564.74
  4. Step 4: Simplify right side
    53,303.22x = 1,564,436,326.82
  5. Step 5: Solve for x
    x = 1,564,436,326.82/53,303.22
  6. Step 6: Final answer
    x = 29,349.75

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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.