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Finding the Fourth Proportional to 39,998.48, 55,203.72 and 23,240.72

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Solution

The fourth proportional to 39,998.48, 55,203.72 and 23,240.72 is: 32,075.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,998.48 : 55,203.72 = 23,240.72 : x
  2. Step 2: Convert to fraction form
    39,998.48/55,203.72 = 23,240.72/x
  3. Step 3: Cross multiply
    39,998.48x = 55,203.72 × 23,240.72
  4. Step 4: Simplify right side
    39,998.48x = 1,282,974,199.48
  5. Step 5: Solve for x
    x = 1,282,974,199.48/39,998.48
  6. Step 6: Final answer
    x = 32,075.57

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1.5x scale

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.