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Finding the Fourth Proportional to 28,662.92, 42,994.12 and 15,598.32

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Solution

The fourth proportional to 28,662.92, 42,994.12 and 15,598.32 is: 23,397.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,662.92 : 42,994.12 = 15,598.32 : x
  2. Step 2: Convert to fraction form
    28,662.92/42,994.12 = 15,598.32/x
  3. Step 3: Cross multiply
    28,662.92x = 42,994.12 × 15,598.32
  4. Step 4: Simplify right side
    28,662.92x = 670,636,041.88
  5. Step 5: Solve for x
    x = 670,636,041.88/28,662.92
  6. Step 6: Final answer
    x = 23,397.34

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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.