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Finding the Fourth Proportional to 49,886.40, 74,829.60 and 49,230.30

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Solution

The fourth proportional to 49,886.40, 74,829.60 and 49,230.30 is: 73,845.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,886.40 : 74,829.60 = 49,230.30 : x
  2. Step 2: Convert to fraction form
    49,886.40/74,829.60 = 49,230.30/x
  3. Step 3: Cross multiply
    49,886.40x = 74,829.60 × 49,230.30
  4. Step 4: Simplify right side
    49,886.40x = 3,683,883,656.88
  5. Step 5: Solve for x
    x = 3,683,883,656.88/49,886.40
  6. Step 6: Final answer
    x = 73,845.45

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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.