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Finding the Fourth Proportional to 71,213, 106,837.74 and 26,840.12

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Solution

The fourth proportional to 71,213, 106,837.74 and 26,840.12 is: 40,267.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,213 : 106,837.74 = 26,840.12 : x
  2. Step 2: Convert to fraction form
    71,213/106,837.74 = 26,840.12/x
  3. Step 3: Cross multiply
    71,213x = 106,837.74 × 26,840.12
  4. Step 4: Simplify right side
    71,213x = 2,867,537,762.13
  5. Step 5: Solve for x
    x = 2,867,537,762.13/71,213
  6. Step 6: Final answer
    x = 40,267.05

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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.