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Finding the Fourth Proportional to 28,068.29, 42,102.28 and 7,008.29

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Solution

The fourth proportional to 28,068.29, 42,102.28 and 7,008.29 is: 10,512.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,068.29 : 42,102.28 = 7,008.29 : x
  2. Step 2: Convert to fraction form
    28,068.29/42,102.28 = 7,008.29/x
  3. Step 3: Cross multiply
    28,068.29x = 42,102.28 × 7,008.29
  4. Step 4: Simplify right side
    28,068.29x = 295,064,952.86
  5. Step 5: Solve for x
    x = 295,064,952.86/28,068.29
  6. Step 6: Final answer
    x = 10,512.40

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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.