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Finding the Fourth Proportional to 7,062.69, 9,746.17 and 3,875.91

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Solution

The fourth proportional to 7,062.69, 9,746.17 and 3,875.91 is: 5,348.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,062.69 : 9,746.17 = 3,875.91 : x
  2. Step 2: Convert to fraction form
    7,062.69/9,746.17 = 3,875.91/x
  3. Step 3: Cross multiply
    7,062.69x = 9,746.17 × 3,875.91
  4. Step 4: Simplify right side
    7,062.69x = 37,775,277.76
  5. Step 5: Solve for x
    x = 37,775,277.76/7,062.69
  6. Step 6: Final answer
    x = 5,348.57

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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.