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Finding the Fourth Proportional to 61,282.40, 91,858.20 and 34,930.40

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Solution

The fourth proportional to 61,282.40, 91,858.20 and 34,930.40 is: 52,358.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,282.40 : 91,858.20 = 34,930.40 : x
  2. Step 2: Convert to fraction form
    61,282.40/91,858.20 = 34,930.40/x
  3. Step 3: Cross multiply
    61,282.40x = 91,858.20 × 34,930.40
  4. Step 4: Simplify right side
    61,282.40x = 3,208,643,669.28
  5. Step 5: Solve for x
    x = 3,208,643,669.28/61,282.40
  6. Step 6: Final answer
    x = 52,358.32

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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.