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Finding the Fourth Proportional to 70,985.25, 106,495.88 and 26,612.13

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Solution

The fourth proportional to 70,985.25, 106,495.88 and 26,612.13 is: 39,924.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,985.25 : 106,495.88 = 26,612.13 : x
  2. Step 2: Convert to fraction form
    70,985.25/106,495.88 = 26,612.13/x
  3. Step 3: Cross multiply
    70,985.25x = 106,495.88 × 26,612.13
  4. Step 4: Simplify right side
    70,985.25x = 2,834,082,069.96
  5. Step 5: Solve for x
    x = 2,834,082,069.96/70,985.25
  6. Step 6: Final answer
    x = 39,924.94

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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.