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Finding the Fourth Proportional to 70,332.86, 97,059.50 and 38,503.80

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Solution

The fourth proportional to 70,332.86, 97,059.50 and 38,503.80 is: 53,135.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,332.86 : 97,059.50 = 38,503.80 : x
  2. Step 2: Convert to fraction form
    70,332.86/97,059.50 = 38,503.80/x
  3. Step 3: Cross multiply
    70,332.86x = 97,059.50 × 38,503.80
  4. Step 4: Simplify right side
    70,332.86x = 3,737,159,672.36
  5. Step 5: Solve for x
    x = 3,737,159,672.36/70,332.86
  6. Step 6: Final answer
    x = 53,135.33

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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.