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Finding the Fourth Proportional to 16,657.68, 22,980.68 and 10,688.08

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Solution

The fourth proportional to 16,657.68, 22,980.68 and 10,688.08 is: 14,745.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,657.68 : 22,980.68 = 10,688.08 : x
  2. Step 2: Convert to fraction form
    16,657.68/22,980.68 = 10,688.08/x
  3. Step 3: Cross multiply
    16,657.68x = 22,980.68 × 10,688.08
  4. Step 4: Simplify right side
    16,657.68x = 245,619,346.29
  5. Step 5: Solve for x
    x = 245,619,346.29/16,657.68
  6. Step 6: Final answer
    x = 14,745.11

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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.