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Finding the Fourth Proportional to 25,608.50, 35,342.05 and 15,539.49

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Solution

The fourth proportional to 25,608.50, 35,342.05 and 15,539.49 is: 21,445.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,608.50 : 35,342.05 = 15,539.49 : x
  2. Step 2: Convert to fraction form
    25,608.50/35,342.05 = 15,539.49/x
  3. Step 3: Cross multiply
    25,608.50x = 35,342.05 × 15,539.49
  4. Step 4: Simplify right side
    25,608.50x = 549,197,393.71
  5. Step 5: Solve for x
    x = 549,197,393.71/25,608.50
  6. Step 6: Final answer
    x = 21,445.91

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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.