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Finding the Fourth Proportional to 25,078.88, 34,607.88 and 15,001.34

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Solution

The fourth proportional to 25,078.88, 34,607.88 and 15,001.34 is: 20,701.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,078.88 : 34,607.88 = 15,001.34 : x
  2. Step 2: Convert to fraction form
    25,078.88/34,607.88 = 15,001.34/x
  3. Step 3: Cross multiply
    25,078.88x = 34,607.88 × 15,001.34
  4. Step 4: Simplify right side
    25,078.88x = 519,164,401.52
  5. Step 5: Solve for x
    x = 519,164,401.52/25,078.88
  6. Step 6: Final answer
    x = 20,701.26

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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.