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Finding the Fourth Proportional to 16,632.84, 22,952.74 and 9,915

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Solution

The fourth proportional to 16,632.84, 22,952.74 and 9,915 is: 13,682.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,632.84 : 22,952.74 = 9,915 : x
  2. Step 2: Convert to fraction form
    16,632.84/22,952.74 = 9,915/x
  3. Step 3: Cross multiply
    16,632.84x = 22,952.74 × 9,915
  4. Step 4: Simplify right side
    16,632.84x = 227,576,417.10
  5. Step 5: Solve for x
    x = 227,576,417.10/16,632.84
  6. Step 6: Final answer
    x = 13,682.35

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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.