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Finding the Fourth Proportional to 26,959.70, 40,425.15 and 9,430.10

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Solution

The fourth proportional to 26,959.70, 40,425.15 and 9,430.10 is: 14,140.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,959.70 : 40,425.15 = 9,430.10 : x
  2. Step 2: Convert to fraction form
    26,959.70/40,425.15 = 9,430.10/x
  3. Step 3: Cross multiply
    26,959.70x = 40,425.15 × 9,430.10
  4. Step 4: Simplify right side
    26,959.70x = 381,213,207.02
  5. Step 5: Solve for x
    x = 381,213,207.02/26,959.70
  6. Step 6: Final answer
    x = 14,140.11

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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.