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Finding the Fourth Proportional to 18,307.52, 25,255.88 and 10,751.40

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Solution

The fourth proportional to 18,307.52, 25,255.88 and 10,751.40 is: 14,831.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,307.52 : 25,255.88 = 10,751.40 : x
  2. Step 2: Convert to fraction form
    18,307.52/25,255.88 = 10,751.40/x
  3. Step 3: Cross multiply
    18,307.52x = 25,255.88 × 10,751.40
  4. Step 4: Simplify right side
    18,307.52x = 271,536,068.23
  5. Step 5: Solve for x
    x = 271,536,068.23/18,307.52
  6. Step 6: Final answer
    x = 14,831.94

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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.