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Finding the Fourth Proportional to 61,307.60, 91,958.83 and 21,335.74

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Solution

The fourth proportional to 61,307.60, 91,958.83 and 21,335.74 is: 32,002.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,307.60 : 91,958.83 = 21,335.74 : x
  2. Step 2: Convert to fraction form
    61,307.60/91,958.83 = 21,335.74/x
  3. Step 3: Cross multiply
    61,307.60x = 91,958.83 × 21,335.74
  4. Step 4: Simplify right side
    61,307.60x = 1,962,009,404.35
  5. Step 5: Solve for x
    x = 1,962,009,404.35/61,307.60
  6. Step 6: Final answer
    x = 32,002.71

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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.