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Finding the Fourth Proportional to 70,168.40, 96,833.76 and 38,339.30

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Solution

The fourth proportional to 70,168.40, 96,833.76 and 38,339.30 is: 52,908.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,168.40 : 96,833.76 = 38,339.30 : x
  2. Step 2: Convert to fraction form
    70,168.40/96,833.76 = 38,339.30/x
  3. Step 3: Cross multiply
    70,168.40x = 96,833.76 × 38,339.30
  4. Step 4: Simplify right side
    70,168.40x = 3,712,538,574.77
  5. Step 5: Solve for x
    x = 3,712,538,574.77/70,168.40
  6. Step 6: Final answer
    x = 52,908.98

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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.