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Finding the Fourth Proportional to 67,853.60, 93,539.64 and 47,648.96

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Solution

The fourth proportional to 67,853.60, 93,539.64 and 47,648.96 is: 65,686.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,853.60 : 93,539.64 = 47,648.96 : x
  2. Step 2: Convert to fraction form
    67,853.60/93,539.64 = 47,648.96/x
  3. Step 3: Cross multiply
    67,853.60x = 93,539.64 × 47,648.96
  4. Step 4: Simplify right side
    67,853.60x = 4,457,066,564.77
  5. Step 5: Solve for x
    x = 4,457,066,564.77/67,853.60
  6. Step 6: Final answer
    x = 65,686.52

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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.