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Finding the Fourth Proportional to 57,615.30, 79,545.81 and 47,030.10

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Solution

The fourth proportional to 57,615.30, 79,545.81 and 47,030.10 is: 64,931.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,615.30 : 79,545.81 = 47,030.10 : x
  2. Step 2: Convert to fraction form
    57,615.30/79,545.81 = 47,030.10/x
  3. Step 3: Cross multiply
    57,615.30x = 79,545.81 × 47,030.10
  4. Step 4: Simplify right side
    57,615.30x = 3,741,047,398.88
  5. Step 5: Solve for x
    x = 3,741,047,398.88/57,615.30
  6. Step 6: Final answer
    x = 64,931.49

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.