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Finding the Fourth Proportional to 61,312.63, 84,615.32 and 34,091.77

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Solution

The fourth proportional to 61,312.63, 84,615.32 and 34,091.77 is: 47,048.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,312.63 : 84,615.32 = 34,091.77 : x
  2. Step 2: Convert to fraction form
    61,312.63/84,615.32 = 34,091.77/x
  3. Step 3: Cross multiply
    61,312.63x = 84,615.32 × 34,091.77
  4. Step 4: Simplify right side
    61,312.63x = 2,884,685,857.46
  5. Step 5: Solve for x
    x = 2,884,685,857.46/61,312.63
  6. Step 6: Final answer
    x = 47,048.80

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.