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Finding the Fourth Proportional to 25,296.61, 34,911.80 and 14,685.61

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Solution

The fourth proportional to 25,296.61, 34,911.80 and 14,685.61 is: 20,267.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,296.61 : 34,911.80 = 14,685.61 : x
  2. Step 2: Convert to fraction form
    25,296.61/34,911.80 = 14,685.61/x
  3. Step 3: Cross multiply
    25,296.61x = 34,911.80 × 14,685.61
  4. Step 4: Simplify right side
    25,296.61x = 512,700,831.21
  5. Step 5: Solve for x
    x = 512,700,831.21/25,296.61
  6. Step 6: Final answer
    x = 20,267.57

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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.