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Finding the Fourth Proportional to 28,445.66, 42,673.99 and 10,914.12

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Solution

The fourth proportional to 28,445.66, 42,673.99 and 10,914.12 is: 16,373.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,445.66 : 42,673.99 = 10,914.12 : x
  2. Step 2: Convert to fraction form
    28,445.66/42,673.99 = 10,914.12/x
  3. Step 3: Cross multiply
    28,445.66x = 42,673.99 × 10,914.12
  4. Step 4: Simplify right side
    28,445.66x = 465,748,920.90
  5. Step 5: Solve for x
    x = 465,748,920.90/28,445.66
  6. Step 6: Final answer
    x = 16,373.29

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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.