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Finding the Fourth Proportional to 19,670.61, 29,510.97 and 6,526.65

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Solution

The fourth proportional to 19,670.61, 29,510.97 and 6,526.65 is: 9,791.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,670.61 : 29,510.97 = 6,526.65 : x
  2. Step 2: Convert to fraction form
    19,670.61/29,510.97 = 6,526.65/x
  3. Step 3: Cross multiply
    19,670.61x = 29,510.97 × 6,526.65
  4. Step 4: Simplify right side
    19,670.61x = 192,607,772.35
  5. Step 5: Solve for x
    x = 192,607,772.35/19,670.61
  6. Step 6: Final answer
    x = 9,791.65

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.