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Finding the Fourth Proportional to 65,888.64, 90,905.28 and 37,595.52

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Solution

The fourth proportional to 65,888.64, 90,905.28 and 37,595.52 is: 51,869.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,888.64 : 90,905.28 = 37,595.52 : x
  2. Step 2: Convert to fraction form
    65,888.64/90,905.28 = 37,595.52/x
  3. Step 3: Cross multiply
    65,888.64x = 90,905.28 × 37,595.52
  4. Step 4: Simplify right side
    65,888.64x = 3,417,631,272.35
  5. Step 5: Solve for x
    x = 3,417,631,272.35/65,888.64
  6. Step 6: Final answer
    x = 51,869.81

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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.