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Finding the Fourth Proportional to 70,573.32, 97,390.76 and 38,308.58

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Solution

The fourth proportional to 70,573.32, 97,390.76 and 38,308.58 is: 52,865.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,573.32 : 97,390.76 = 38,308.58 : x
  2. Step 2: Convert to fraction form
    70,573.32/97,390.76 = 38,308.58/x
  3. Step 3: Cross multiply
    70,573.32x = 97,390.76 × 38,308.58
  4. Step 4: Simplify right side
    70,573.32x = 3,730,902,059.97
  5. Step 5: Solve for x
    x = 3,730,902,059.97/70,573.32
  6. Step 6: Final answer
    x = 52,865.62

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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.