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Finding the Fourth Proportional to 62,568.40, 86,323.72 and 38,360.40

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Solution

The fourth proportional to 62,568.40, 86,323.72 and 38,360.40 is: 52,924.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,568.40 : 86,323.72 = 38,360.40 : x
  2. Step 2: Convert to fraction form
    62,568.40/86,323.72 = 38,360.40/x
  3. Step 3: Cross multiply
    62,568.40x = 86,323.72 × 38,360.40
  4. Step 4: Simplify right side
    62,568.40x = 3,311,412,428.69
  5. Step 5: Solve for x
    x = 3,311,412,428.69/62,568.40
  6. Step 6: Final answer
    x = 52,924.68

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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.