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Finding the Fourth Proportional to 72,448.70, 108,673.05 and 48,829.10

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Solution

The fourth proportional to 72,448.70, 108,673.05 and 48,829.10 is: 73,243.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,448.70 : 108,673.05 = 48,829.10 : x
  2. Step 2: Convert to fraction form
    72,448.70/108,673.05 = 48,829.10/x
  3. Step 3: Cross multiply
    72,448.70x = 108,673.05 × 48,829.10
  4. Step 4: Simplify right side
    72,448.70x = 5,306,407,225.76
  5. Step 5: Solve for x
    x = 5,306,407,225.76/72,448.70
  6. Step 6: Final answer
    x = 73,243.65

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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.