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Finding the Fourth Proportional to 25,572.80, 35,290.86 and 14,394.80

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Solution

The fourth proportional to 25,572.80, 35,290.86 and 14,394.80 is: 19,865.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,572.80 : 35,290.86 = 14,394.80 : x
  2. Step 2: Convert to fraction form
    25,572.80/35,290.86 = 14,394.80/x
  3. Step 3: Cross multiply
    25,572.80x = 35,290.86 × 14,394.80
  4. Step 4: Simplify right side
    25,572.80x = 508,004,871.53
  5. Step 5: Solve for x
    x = 508,004,871.53/25,572.80
  6. Step 6: Final answer
    x = 19,865.05

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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.