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Finding the Fourth Proportional to 70,289.94, 96,999.96 and 38,458.77

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Solution

The fourth proportional to 70,289.94, 96,999.96 and 38,458.77 is: 53,073.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,289.94 : 96,999.96 = 38,458.77 : x
  2. Step 2: Convert to fraction form
    70,289.94/96,999.96 = 38,458.77/x
  3. Step 3: Cross multiply
    70,289.94x = 96,999.96 × 38,458.77
  4. Step 4: Simplify right side
    70,289.94x = 3,730,499,151.65
  5. Step 5: Solve for x
    x = 3,730,499,151.65/70,289.94
  6. Step 6: Final answer
    x = 53,073.02

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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.