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Finding the Fourth Proportional to 70,455.86, 97,228.96 and 38,624.99

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Solution

The fourth proportional to 70,455.86, 97,228.96 and 38,624.99 is: 53,302.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,455.86 : 97,228.96 = 38,624.99 : x
  2. Step 2: Convert to fraction form
    70,455.86/97,228.96 = 38,624.99/x
  3. Step 3: Cross multiply
    70,455.86x = 97,228.96 × 38,624.99
  4. Step 4: Simplify right side
    70,455.86x = 3,755,467,025.00
  5. Step 5: Solve for x
    x = 3,755,467,025.00/70,455.86
  6. Step 6: Final answer
    x = 53,302.41

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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.