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Finding the Fourth Proportional to 70,671.64, 106,012.64 and 26,298.38

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Solution

The fourth proportional to 70,671.64, 106,012.64 and 26,298.38 is: 39,449.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,671.64 : 106,012.64 = 26,298.38 : x
  2. Step 2: Convert to fraction form
    70,671.64/106,012.64 = 26,298.38/x
  3. Step 3: Cross multiply
    70,671.64x = 106,012.64 × 26,298.38
  4. Step 4: Simplify right side
    70,671.64x = 2,787,960,691.52
  5. Step 5: Solve for x
    x = 2,787,960,691.52/70,671.64
  6. Step 6: Final answer
    x = 39,449.50

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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.