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Finding the Fourth Proportional to 25,394.78, 35,045.09 and 14,064.47

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Solution

The fourth proportional to 25,394.78, 35,045.09 and 14,064.47 is: 19,409.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,394.78 : 35,045.09 = 14,064.47 : x
  2. Step 2: Convert to fraction form
    25,394.78/35,045.09 = 14,064.47/x
  3. Step 3: Cross multiply
    25,394.78x = 35,045.09 × 14,064.47
  4. Step 4: Simplify right side
    25,394.78x = 492,890,555.57
  5. Step 5: Solve for x
    x = 492,890,555.57/25,394.78
  6. Step 6: Final answer
    x = 19,409.13

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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.