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Finding the Fourth Proportional to 70,772.70, 97,665.96 and 38,941.47

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Solution

The fourth proportional to 70,772.70, 97,665.96 and 38,941.47 is: 53,739.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,772.70 : 97,665.96 = 38,941.47 : x
  2. Step 2: Convert to fraction form
    70,772.70/97,665.96 = 38,941.47/x
  3. Step 3: Cross multiply
    70,772.70x = 97,665.96 × 38,941.47
  4. Step 4: Simplify right side
    70,772.70x = 3,803,256,051.36
  5. Step 5: Solve for x
    x = 3,803,256,051.36/70,772.70
  6. Step 6: Final answer
    x = 53,739.03

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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.