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Finding the Fourth Proportional to 16,335.47, 22,539.47 and 9,618.65

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Solution

The fourth proportional to 16,335.47, 22,539.47 and 9,618.65 is: 13,271.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,335.47 : 22,539.47 = 9,618.65 : x
  2. Step 2: Convert to fraction form
    16,335.47/22,539.47 = 9,618.65/x
  3. Step 3: Cross multiply
    16,335.47x = 22,539.47 × 9,618.65
  4. Step 4: Simplify right side
    16,335.47x = 216,799,184.46
  5. Step 5: Solve for x
    x = 216,799,184.46/16,335.47
  6. Step 6: Final answer
    x = 13,271.68

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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.