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Finding the Fourth Proportional to 70,866.63, 97,796.22 and 39,035.46

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Solution

The fourth proportional to 70,866.63, 97,796.22 and 39,035.46 is: 53,869.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,866.63 : 97,796.22 = 39,035.46 : x
  2. Step 2: Convert to fraction form
    70,866.63/97,796.22 = 39,035.46/x
  3. Step 3: Cross multiply
    70,866.63x = 97,796.22 × 39,035.46
  4. Step 4: Simplify right side
    70,866.63x = 3,817,520,433.96
  5. Step 5: Solve for x
    x = 3,817,520,433.96/70,866.63
  6. Step 6: Final answer
    x = 53,869.08

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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.