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Finding the Fourth Proportional to 7,326.99, 10,962.54 and 6,442.47

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Solution

The fourth proportional to 7,326.99, 10,962.54 and 6,442.47 is: 9,639.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,326.99 : 10,962.54 = 6,442.47 : x
  2. Step 2: Convert to fraction form
    7,326.99/10,962.54 = 6,442.47/x
  3. Step 3: Cross multiply
    7,326.99x = 10,962.54 × 6,442.47
  4. Step 4: Simplify right side
    7,326.99x = 70,625,835.07
  5. Step 5: Solve for x
    x = 70,625,835.07/7,326.99
  6. Step 6: Final answer
    x = 9,639.13

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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.