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Finding the Fourth Proportional to 64,442.91, 88,911.10 and 37,215.51

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Solution

The fourth proportional to 64,442.91, 88,911.10 and 37,215.51 is: 51,345.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,442.91 : 88,911.10 = 37,215.51 : x
  2. Step 2: Convert to fraction form
    64,442.91/88,911.10 = 37,215.51/x
  3. Step 3: Cross multiply
    64,442.91x = 88,911.10 × 37,215.51
  4. Step 4: Simplify right side
    64,442.91x = 3,308,871,931.16
  5. Step 5: Solve for x
    x = 3,308,871,931.16/64,442.91
  6. Step 6: Final answer
    x = 51,345.79

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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.