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Finding the Fourth Proportional to 58,971.60, 81,484.44 and 47,132.64

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Solution

The fourth proportional to 58,971.60, 81,484.44 and 47,132.64 is: 65,125.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,971.60 : 81,484.44 = 47,132.64 : x
  2. Step 2: Convert to fraction form
    58,971.60/81,484.44 = 47,132.64/x
  3. Step 3: Cross multiply
    58,971.60x = 81,484.44 × 47,132.64
  4. Step 4: Simplify right side
    58,971.60x = 3,840,576,776.12
  5. Step 5: Solve for x
    x = 3,840,576,776.12/58,971.60
  6. Step 6: Final answer
    x = 65,125.87

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1.5x scale

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.