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Finding the Fourth Proportional to 28,068.32, 42,101.44 and 7,008.32

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Solution

The fourth proportional to 28,068.32, 42,101.44 and 7,008.32 is: 10,512.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,068.32 : 42,101.44 = 7,008.32 : x
  2. Step 2: Convert to fraction form
    28,068.32/42,101.44 = 7,008.32/x
  3. Step 3: Cross multiply
    28,068.32x = 42,101.44 × 7,008.32
  4. Step 4: Simplify right side
    28,068.32x = 295,060,363.98
  5. Step 5: Solve for x
    x = 295,060,363.98/28,068.32
  6. Step 6: Final answer
    x = 10,512.22

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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.