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Finding the Fourth Proportional to 62,655.60, 93,980.88 and 20,538.84

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Solution

The fourth proportional to 62,655.60, 93,980.88 and 20,538.84 is: 30,807.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,655.60 : 93,980.88 = 20,538.84 : x
  2. Step 2: Convert to fraction form
    62,655.60/93,980.88 = 20,538.84/x
  3. Step 3: Cross multiply
    62,655.60x = 93,980.88 × 20,538.84
  4. Step 4: Simplify right side
    62,655.60x = 1,930,258,257.38
  5. Step 5: Solve for x
    x = 1,930,258,257.38/62,655.60
  6. Step 6: Final answer
    x = 30,807.43

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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.