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Finding the Fourth Proportional to 70,145.34, 96,799.98 and 38,314.26

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Solution

The fourth proportional to 70,145.34, 96,799.98 and 38,314.26 is: 52,873.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,145.34 : 96,799.98 = 38,314.26 : x
  2. Step 2: Convert to fraction form
    70,145.34/96,799.98 = 38,314.26/x
  3. Step 3: Cross multiply
    70,145.34x = 96,799.98 × 38,314.26
  4. Step 4: Simplify right side
    70,145.34x = 3,708,819,601.71
  5. Step 5: Solve for x
    x = 3,708,819,601.71/70,145.34
  6. Step 6: Final answer
    x = 52,873.36

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.