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Finding the Fourth Proportional to 61,994.60, 85,459.57 and 48,542.50

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Solution

The fourth proportional to 61,994.60, 85,459.57 and 48,542.50 is: 66,915.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,994.60 : 85,459.57 = 48,542.50 : x
  2. Step 2: Convert to fraction form
    61,994.60/85,459.57 = 48,542.50/x
  3. Step 3: Cross multiply
    61,994.60x = 85,459.57 × 48,542.50
  4. Step 4: Simplify right side
    61,994.60x = 4,148,421,162.19
  5. Step 5: Solve for x
    x = 4,148,421,162.19/61,994.60
  6. Step 6: Final answer
    x = 66,915.85

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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.