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Finding the Fourth Proportional to 7,681.52, 10,601.84 and 7,330.91

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Solution

The fourth proportional to 7,681.52, 10,601.84 and 7,330.91 is: 10,117.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,681.52 : 10,601.84 = 7,330.91 : x
  2. Step 2: Convert to fraction form
    7,681.52/10,601.84 = 7,330.91/x
  3. Step 3: Cross multiply
    7,681.52x = 10,601.84 × 7,330.91
  4. Step 4: Simplify right side
    7,681.52x = 77,721,179.71
  5. Step 5: Solve for x
    x = 77,721,179.71/7,681.52
  6. Step 6: Final answer
    x = 10,117.95

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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.