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Finding the Fourth Proportional to 57,798.90, 86,719.95 and 22,762.98

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Solution

The fourth proportional to 57,798.90, 86,719.95 and 22,762.98 is: 34,152.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,798.90 : 86,719.95 = 22,762.98 : x
  2. Step 2: Convert to fraction form
    57,798.90/86,719.95 = 22,762.98/x
  3. Step 3: Cross multiply
    57,798.90x = 86,719.95 × 22,762.98
  4. Step 4: Simplify right side
    57,798.90x = 1,974,004,487.45
  5. Step 5: Solve for x
    x = 1,974,004,487.45/57,798.90
  6. Step 6: Final answer
    x = 34,152.98

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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.