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Finding the Fourth Proportional to 7,198.86, 9,934.47 and 4,547.46

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Solution

The fourth proportional to 7,198.86, 9,934.47 and 4,547.46 is: 6,275.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,198.86 : 9,934.47 = 4,547.46 : x
  2. Step 2: Convert to fraction form
    7,198.86/9,934.47 = 4,547.46/x
  3. Step 3: Cross multiply
    7,198.86x = 9,934.47 × 4,547.46
  4. Step 4: Simplify right side
    7,198.86x = 45,176,604.95
  5. Step 5: Solve for x
    x = 45,176,604.95/7,198.86
  6. Step 6: Final answer
    x = 6,275.52

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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.