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Finding the Fourth Proportional to 39,957.76, 59,943.14 and 14,999.77

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Solution

The fourth proportional to 39,957.76, 59,943.14 and 14,999.77 is: 22,502.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,957.76 : 59,943.14 = 14,999.77 : x
  2. Step 2: Convert to fraction form
    39,957.76/59,943.14 = 14,999.77/x
  3. Step 3: Cross multiply
    39,957.76x = 59,943.14 × 14,999.77
  4. Step 4: Simplify right side
    39,957.76x = 899,133,313.08
  5. Step 5: Solve for x
    x = 899,133,313.08/39,957.76
  6. Step 6: Final answer
    x = 22,502.10

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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.