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Finding the Fourth Proportional to 70,503.69, 97,295.25 and 38,672.71

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Solution

The fourth proportional to 70,503.69, 97,295.25 and 38,672.71 is: 53,368.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,503.69 : 97,295.25 = 38,672.71 : x
  2. Step 2: Convert to fraction form
    70,503.69/97,295.25 = 38,672.71/x
  3. Step 3: Cross multiply
    70,503.69x = 97,295.25 × 38,672.71
  4. Step 4: Simplify right side
    70,503.69x = 3,762,670,987.63
  5. Step 5: Solve for x
    x = 3,762,670,987.63/70,503.69
  6. Step 6: Final answer
    x = 53,368.43

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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.