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Finding the Fourth Proportional to 35,952.40, 53,912.40 and 13,758.40

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Solution

The fourth proportional to 35,952.40, 53,912.40 and 13,758.40 is: 20,631.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,952.40 : 53,912.40 = 13,758.40 : x
  2. Step 2: Convert to fraction form
    35,952.40/53,912.40 = 13,758.40/x
  3. Step 3: Cross multiply
    35,952.40x = 53,912.40 × 13,758.40
  4. Step 4: Simplify right side
    35,952.40x = 741,748,364.16
  5. Step 5: Solve for x
    x = 741,748,364.16/35,952.40
  6. Step 6: Final answer
    x = 20,631.40

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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.