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Finding the Fourth Proportional to 7,162.76, 9,881.52 and 5,038.58

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Solution

The fourth proportional to 7,162.76, 9,881.52 and 5,038.58 is: 6,951.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,162.76 : 9,881.52 = 5,038.58 : x
  2. Step 2: Convert to fraction form
    7,162.76/9,881.52 = 5,038.58/x
  3. Step 3: Cross multiply
    7,162.76x = 9,881.52 × 5,038.58
  4. Step 4: Simplify right side
    7,162.76x = 49,788,829.04
  5. Step 5: Solve for x
    x = 49,788,829.04/7,162.76
  6. Step 6: Final answer
    x = 6,951.07

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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.