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Finding the Fourth Proportional to 61,322.40, 91,983.60 and 49,658.40

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Solution

The fourth proportional to 61,322.40, 91,983.60 and 49,658.40 is: 74,487.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,322.40 : 91,983.60 = 49,658.40 : x
  2. Step 2: Convert to fraction form
    61,322.40/91,983.60 = 49,658.40/x
  3. Step 3: Cross multiply
    61,322.40x = 91,983.60 × 49,658.40
  4. Step 4: Simplify right side
    61,322.40x = 4,567,758,402.24
  5. Step 5: Solve for x
    x = 4,567,758,402.24/61,322.40
  6. Step 6: Final answer
    x = 74,487.60

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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.