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Finding the Fourth Proportional to 62,673.60, 86,472.32 and 40,330.56

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Solution

The fourth proportional to 62,673.60, 86,472.32 and 40,330.56 is: 55,645.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,673.60 : 86,472.32 = 40,330.56 : x
  2. Step 2: Convert to fraction form
    62,673.60/86,472.32 = 40,330.56/x
  3. Step 3: Cross multiply
    62,673.60x = 86,472.32 × 40,330.56
  4. Step 4: Simplify right side
    62,673.60x = 3,487,477,090.10
  5. Step 5: Solve for x
    x = 3,487,477,090.10/62,673.60
  6. Step 6: Final answer
    x = 55,645.07

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.