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Finding the Fourth Proportional to 58,762.08, 81,035.76 and 38,636

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Solution

The fourth proportional to 58,762.08, 81,035.76 and 38,636 is: 53,280.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,762.08 : 81,035.76 = 38,636 : x
  2. Step 2: Convert to fraction form
    58,762.08/81,035.76 = 38,636/x
  3. Step 3: Cross multiply
    58,762.08x = 81,035.76 × 38,636
  4. Step 4: Simplify right side
    58,762.08x = 3,130,897,623.36
  5. Step 5: Solve for x
    x = 3,130,897,623.36/58,762.08
  6. Step 6: Final answer
    x = 53,280.92

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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.