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Finding the Fourth Proportional to 59,615, 89,459.40 and 34,666.76

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Solution

The fourth proportional to 59,615, 89,459.40 and 34,666.76 is: 52,021.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    59,615 : 89,459.40 = 34,666.76 : x
  2. Step 2: Convert to fraction form
    59,615/89,459.40 = 34,666.76/x
  3. Step 3: Cross multiply
    59,615x = 89,459.40 × 34,666.76
  4. Step 4: Simplify right side
    59,615x = 3,101,267,549.54
  5. Step 5: Solve for x
    x = 3,101,267,549.54/59,615
  6. Step 6: Final answer
    x = 52,021.60

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.