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Finding the Fourth Proportional to 61,607.26, 85,017.90 and 33,312.88

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Solution

The fourth proportional to 61,607.26, 85,017.90 and 33,312.88 is: 45,971.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,607.26 : 85,017.90 = 33,312.88 : x
  2. Step 2: Convert to fraction form
    61,607.26/85,017.90 = 33,312.88/x
  3. Step 3: Cross multiply
    61,607.26x = 85,017.90 × 33,312.88
  4. Step 4: Simplify right side
    61,607.26x = 2,832,191,100.55
  5. Step 5: Solve for x
    x = 2,832,191,100.55/61,607.26
  6. Step 6: Final answer
    x = 45,971.71

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1.5x scale

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.