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Finding the Fourth Proportional to 62,636.54, 93,970.16 and 20,518.88

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Solution

The fourth proportional to 62,636.54, 93,970.16 and 20,518.88 is: 30,783.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,636.54 : 93,970.16 = 20,518.88 : x
  2. Step 2: Convert to fraction form
    62,636.54/93,970.16 = 20,518.88/x
  3. Step 3: Cross multiply
    62,636.54x = 93,970.16 × 20,518.88
  4. Step 4: Simplify right side
    62,636.54x = 1,928,162,334.03
  5. Step 5: Solve for x
    x = 1,928,162,334.03/62,636.54
  6. Step 6: Final answer
    x = 30,783.35

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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.