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Finding the Fourth Proportional to 25,378.35, 35,020.42 and 14,047.08

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Solution

The fourth proportional to 25,378.35, 35,020.42 and 14,047.08 is: 19,384.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,378.35 : 35,020.42 = 14,047.08 : x
  2. Step 2: Convert to fraction form
    25,378.35/35,020.42 = 14,047.08/x
  3. Step 3: Cross multiply
    25,378.35x = 35,020.42 × 14,047.08
  4. Step 4: Simplify right side
    25,378.35x = 491,934,641.37
  5. Step 5: Solve for x
    x = 491,934,641.37/25,378.35
  6. Step 6: Final answer
    x = 19,384.03

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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.