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Finding the Fourth Proportional to 61,935, 85,455.64 and 36,442.48

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Solution

The fourth proportional to 61,935, 85,455.64 and 36,442.48 is: 50,282.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,935 : 85,455.64 = 36,442.48 : x
  2. Step 2: Convert to fraction form
    61,935/85,455.64 = 36,442.48/x
  3. Step 3: Cross multiply
    61,935x = 85,455.64 × 36,442.48
  4. Step 4: Simplify right side
    61,935x = 3,114,215,451.59
  5. Step 5: Solve for x
    x = 3,114,215,451.59/61,935
  6. Step 6: Final answer
    x = 50,282.00

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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.