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Finding the Fourth Proportional to 70,602.69, 97,432.39 and 38,772.25

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Solution

The fourth proportional to 70,602.69, 97,432.39 and 38,772.25 is: 53,506.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,602.69 : 97,432.39 = 38,772.25 : x
  2. Step 2: Convert to fraction form
    70,602.69/97,432.39 = 38,772.25/x
  3. Step 3: Cross multiply
    70,602.69x = 97,432.39 × 38,772.25
  4. Step 4: Simplify right side
    70,602.69x = 3,777,672,983.18
  5. Step 5: Solve for x
    x = 3,777,672,983.18/70,602.69
  6. Step 6: Final answer
    x = 53,506.08

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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.