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Finding the Fourth Proportional to 61,335.36, 92,002.93 and 19,218.67

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Solution

The fourth proportional to 61,335.36, 92,002.93 and 19,218.67 is: 28,827.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,335.36 : 92,002.93 = 19,218.67 : x
  2. Step 2: Convert to fraction form
    61,335.36/92,002.93 = 19,218.67/x
  3. Step 3: Cross multiply
    61,335.36x = 92,002.93 × 19,218.67
  4. Step 4: Simplify right side
    61,335.36x = 1,768,174,058.34
  5. Step 5: Solve for x
    x = 1,768,174,058.34/61,335.36
  6. Step 6: Final answer
    x = 28,827.97

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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.