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Finding the Fourth Proportional to 35,671.92, 53,520.08 and 13,491.68

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Solution

The fourth proportional to 35,671.92, 53,520.08 and 13,491.68 is: 20,242.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,671.92 : 53,520.08 = 13,491.68 : x
  2. Step 2: Convert to fraction form
    35,671.92/53,520.08 = 13,491.68/x
  3. Step 3: Cross multiply
    35,671.92x = 53,520.08 × 13,491.68
  4. Step 4: Simplify right side
    35,671.92x = 722,075,792.93
  5. Step 5: Solve for x
    x = 722,075,792.93/35,671.92
  6. Step 6: Final answer
    x = 20,242.13

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1.5x scale

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.