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Finding the Fourth Proportional to 14,880.43, 20,535.90 and 9,835.90

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Solution

The fourth proportional to 14,880.43, 20,535.90 and 9,835.90 is: 13,574.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,880.43 : 20,535.90 = 9,835.90 : x
  2. Step 2: Convert to fraction form
    14,880.43/20,535.90 = 9,835.90/x
  3. Step 3: Cross multiply
    14,880.43x = 20,535.90 × 9,835.90
  4. Step 4: Simplify right side
    14,880.43x = 201,989,007.47
  5. Step 5: Solve for x
    x = 201,989,007.47/14,880.43
  6. Step 6: Final answer
    x = 13,574.14

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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.