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Finding the Fourth Proportional to 52,831.55, 79,255.02 and 15,386.87

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Solution

The fourth proportional to 52,831.55, 79,255.02 and 15,386.87 is: 23,082.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,831.55 : 79,255.02 = 15,386.87 : x
  2. Step 2: Convert to fraction form
    52,831.55/79,255.02 = 15,386.87/x
  3. Step 3: Cross multiply
    52,831.55x = 79,255.02 × 15,386.87
  4. Step 4: Simplify right side
    52,831.55x = 1,219,486,689.59
  5. Step 5: Solve for x
    x = 1,219,486,689.59/52,831.55
  6. Step 6: Final answer
    x = 23,082.55

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.