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Finding the Fourth Proportional to 10,658.55, 14,718.09 and 6,686.52

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Solution

The fourth proportional to 10,658.55, 14,718.09 and 6,686.52 is: 9,233.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,658.55 : 14,718.09 = 6,686.52 : x
  2. Step 2: Convert to fraction form
    10,658.55/14,718.09 = 6,686.52/x
  3. Step 3: Cross multiply
    10,658.55x = 14,718.09 × 6,686.52
  4. Step 4: Simplify right side
    10,658.55x = 98,412,803.15
  5. Step 5: Solve for x
    x = 98,412,803.15/10,658.55
  6. Step 6: Final answer
    x = 9,233.23

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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.