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Finding the Fourth Proportional to 25,800.66, 35,598.06 and 15,188.22

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Solution

The fourth proportional to 25,800.66, 35,598.06 and 15,188.22 is: 20,955.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,800.66 : 35,598.06 = 15,188.22 : x
  2. Step 2: Convert to fraction form
    25,800.66/35,598.06 = 15,188.22/x
  3. Step 3: Cross multiply
    25,800.66x = 35,598.06 × 15,188.22
  4. Step 4: Simplify right side
    25,800.66x = 540,671,166.85
  5. Step 5: Solve for x
    x = 540,671,166.85/25,800.66
  6. Step 6: Final answer
    x = 20,955.71

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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.