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Finding the Fourth Proportional to 64,574.40, 97,007.42 and 38,296.38

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Solution

The fourth proportional to 64,574.40, 97,007.42 and 38,296.38 is: 57,531.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,574.40 : 97,007.42 = 38,296.38 : x
  2. Step 2: Convert to fraction form
    64,574.40/97,007.42 = 38,296.38/x
  3. Step 3: Cross multiply
    64,574.40x = 97,007.42 × 38,296.38
  4. Step 4: Simplify right side
    64,574.40x = 3,715,032,827.66
  5. Step 5: Solve for x
    x = 3,715,032,827.66/64,574.40
  6. Step 6: Final answer
    x = 57,531.05

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.