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Finding the Fourth Proportional to 70,923.78, 97,873.65 and 39,095.64

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Solution

The fourth proportional to 70,923.78, 97,873.65 and 39,095.64 is: 53,951.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,923.78 : 97,873.65 = 39,095.64 : x
  2. Step 2: Convert to fraction form
    70,923.78/97,873.65 = 39,095.64/x
  3. Step 3: Cross multiply
    70,923.78x = 97,873.65 × 39,095.64
  4. Step 4: Simplify right side
    70,923.78x = 3,826,432,985.89
  5. Step 5: Solve for x
    x = 3,826,432,985.89/70,923.78
  6. Step 6: Final answer
    x = 53,951.34

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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.