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Finding the Fourth Proportional to 62,813.40, 94,074.30 and 42,984.60

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Solution

The fourth proportional to 62,813.40, 94,074.30 and 42,984.60 is: 64,377.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,813.40 : 94,074.30 = 42,984.60 : x
  2. Step 2: Convert to fraction form
    62,813.40/94,074.30 = 42,984.60/x
  3. Step 3: Cross multiply
    62,813.40x = 94,074.30 × 42,984.60
  4. Step 4: Simplify right side
    62,813.40x = 4,043,746,155.78
  5. Step 5: Solve for x
    x = 4,043,746,155.78/62,813.40
  6. Step 6: Final answer
    x = 64,377.13

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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.