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Finding the Fourth Proportional to 61,886.64, 85,397.04 and 35,024.88

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Solution

The fourth proportional to 61,886.64, 85,397.04 and 35,024.88 is: 48,330.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,886.64 : 85,397.04 = 35,024.88 : x
  2. Step 2: Convert to fraction form
    61,886.64/85,397.04 = 35,024.88/x
  3. Step 3: Cross multiply
    61,886.64x = 85,397.04 × 35,024.88
  4. Step 4: Simplify right side
    61,886.64x = 2,991,021,078.36
  5. Step 5: Solve for x
    x = 2,991,021,078.36/61,886.64
  6. Step 6: Final answer
    x = 48,330.64

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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.