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Finding the Fourth Proportional to 18,303.51, 25,254.60 and 10,749.45

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Solution

The fourth proportional to 18,303.51, 25,254.60 and 10,749.45 is: 14,831.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,303.51 : 25,254.60 = 10,749.45 : x
  2. Step 2: Convert to fraction form
    18,303.51/25,254.60 = 10,749.45/x
  3. Step 3: Cross multiply
    18,303.51x = 25,254.60 × 10,749.45
  4. Step 4: Simplify right side
    18,303.51x = 271,473,059.97
  5. Step 5: Solve for x
    x = 271,473,059.97/18,303.51
  6. Step 6: Final answer
    x = 14,831.75

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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.