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Finding the Fourth Proportional to 70,500.77, 97,292.30 and 38,669.60

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Solution

The fourth proportional to 70,500.77, 97,292.30 and 38,669.60 is: 53,364.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,500.77 : 97,292.30 = 38,669.60 : x
  2. Step 2: Convert to fraction form
    70,500.77/97,292.30 = 38,669.60/x
  3. Step 3: Cross multiply
    70,500.77x = 97,292.30 × 38,669.60
  4. Step 4: Simplify right side
    70,500.77x = 3,762,253,644.27
  5. Step 5: Solve for x
    x = 3,762,253,644.27/70,500.77
  6. Step 6: Final answer
    x = 53,364.72

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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.