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Finding the Fourth Proportional to 70,852.64, 97,776.76 and 39,021.62

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Solution

The fourth proportional to 70,852.64, 97,776.76 and 39,021.62 is: 53,849.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,852.64 : 97,776.76 = 39,021.62 : x
  2. Step 2: Convert to fraction form
    70,852.64/97,776.76 = 39,021.62/x
  3. Step 3: Cross multiply
    70,852.64x = 97,776.76 × 39,021.62
  4. Step 4: Simplify right side
    70,852.64x = 3,815,407,573.55
  5. Step 5: Solve for x
    x = 3,815,407,573.55/70,852.64
  6. Step 6: Final answer
    x = 53,849.90

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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.