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Finding the Fourth Proportional to 16,639.16, 24,970.95 and 7,875.95

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Solution

The fourth proportional to 16,639.16, 24,970.95 and 7,875.95 is: 11,819.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,639.16 : 24,970.95 = 7,875.95 : x
  2. Step 2: Convert to fraction form
    16,639.16/24,970.95 = 7,875.95/x
  3. Step 3: Cross multiply
    16,639.16x = 24,970.95 × 7,875.95
  4. Step 4: Simplify right side
    16,639.16x = 196,669,828.80
  5. Step 5: Solve for x
    x = 196,669,828.80/16,639.16
  6. Step 6: Final answer
    x = 11,819.70

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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.