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Finding the Fourth Proportional to 70,497.25, 97,287.72 and 38,666.07

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Solution

The fourth proportional to 70,497.25, 97,287.72 and 38,666.07 is: 53,360.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,497.25 : 97,287.72 = 38,666.07 : x
  2. Step 2: Convert to fraction form
    70,497.25/97,287.72 = 38,666.07/x
  3. Step 3: Cross multiply
    70,497.25x = 97,287.72 × 38,666.07
  4. Step 4: Simplify right side
    70,497.25x = 3,761,733,791.66
  5. Step 5: Solve for x
    x = 3,761,733,791.66/70,497.25
  6. Step 6: Final answer
    x = 53,360.01

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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.