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Finding the Fourth Proportional to 70,261.63, 96,960.65 and 40,048.22

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Solution

The fourth proportional to 70,261.63, 96,960.65 and 40,048.22 is: 55,266.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,261.63 : 96,960.65 = 40,048.22 : x
  2. Step 2: Convert to fraction form
    70,261.63/96,960.65 = 40,048.22/x
  3. Step 3: Cross multiply
    70,261.63x = 96,960.65 × 40,048.22
  4. Step 4: Simplify right side
    70,261.63x = 3,883,101,484.70
  5. Step 5: Solve for x
    x = 3,883,101,484.70/70,261.63
  6. Step 6: Final answer
    x = 55,266.32

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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.