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Finding the Fourth Proportional to 25,445.69, 35,106.65 and 15,370.30

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Solution

The fourth proportional to 25,445.69, 35,106.65 and 15,370.30 is: 21,205.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,445.69 : 35,106.65 = 15,370.30 : x
  2. Step 2: Convert to fraction form
    25,445.69/35,106.65 = 15,370.30/x
  3. Step 3: Cross multiply
    25,445.69x = 35,106.65 × 15,370.30
  4. Step 4: Simplify right side
    25,445.69x = 539,599,767.17
  5. Step 5: Solve for x
    x = 539,599,767.17/25,445.69
  6. Step 6: Final answer
    x = 21,205.94

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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.