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Finding the Fourth Proportional to 12,045.68, 16,623.74 and 6,740.45

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Solution

The fourth proportional to 12,045.68, 16,623.74 and 6,740.45 is: 9,302.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,045.68 : 16,623.74 = 6,740.45 : x
  2. Step 2: Convert to fraction form
    12,045.68/16,623.74 = 6,740.45/x
  3. Step 3: Cross multiply
    12,045.68x = 16,623.74 × 6,740.45
  4. Step 4: Simplify right side
    12,045.68x = 112,051,454.58
  5. Step 5: Solve for x
    x = 112,051,454.58/12,045.68
  6. Step 6: Final answer
    x = 9,302.21

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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.