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Finding the Fourth Proportional to 61,885.68, 92,759.40 and 56,903.64

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Solution

The fourth proportional to 61,885.68, 92,759.40 and 56,903.64 is: 85,291.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,885.68 : 92,759.40 = 56,903.64 : x
  2. Step 2: Convert to fraction form
    61,885.68/92,759.40 = 56,903.64/x
  3. Step 3: Cross multiply
    61,885.68x = 92,759.40 × 56,903.64
  4. Step 4: Simplify right side
    61,885.68x = 5,278,347,504.22
  5. Step 5: Solve for x
    x = 5,278,347,504.22/61,885.68
  6. Step 6: Final answer
    x = 85,291.90

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1.5x scale

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.