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Finding the Fourth Proportional to 61,621.79, 85,038.12 and 33,327.47

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Solution

The fourth proportional to 61,621.79, 85,038.12 and 33,327.47 is: 45,991.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,621.79 : 85,038.12 = 33,327.47 : x
  2. Step 2: Convert to fraction form
    61,621.79/85,038.12 = 33,327.47/x
  3. Step 3: Cross multiply
    61,621.79x = 85,038.12 × 33,327.47
  4. Step 4: Simplify right side
    61,621.79x = 2,834,105,605.75
  5. Step 5: Solve for x
    x = 2,834,105,605.75/61,621.79
  6. Step 6: Final answer
    x = 45,991.94

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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.