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Finding the Fourth Proportional to 59,281.64, 81,888.54 and 47,429.72

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Solution

The fourth proportional to 59,281.64, 81,888.54 and 47,429.72 is: 65,516.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    59,281.64 : 81,888.54 = 47,429.72 : x
  2. Step 2: Convert to fraction form
    59,281.64/81,888.54 = 47,429.72/x
  3. Step 3: Cross multiply
    59,281.64x = 81,888.54 × 47,429.72
  4. Step 4: Simplify right side
    59,281.64x = 3,883,950,523.41
  5. Step 5: Solve for x
    x = 3,883,950,523.41/59,281.64
  6. Step 6: Final answer
    x = 65,516.92

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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.