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Finding the Fourth Proportional to 12,354.23, 17,045.55 and 7,048.94

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Solution

The fourth proportional to 12,354.23, 17,045.55 and 7,048.94 is: 9,725.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,354.23 : 17,045.55 = 7,048.94 : x
  2. Step 2: Convert to fraction form
    12,354.23/17,045.55 = 7,048.94/x
  3. Step 3: Cross multiply
    12,354.23x = 17,045.55 × 7,048.94
  4. Step 4: Simplify right side
    12,354.23x = 120,152,973.99
  5. Step 5: Solve for x
    x = 120,152,973.99/12,354.23
  6. Step 6: Final answer
    x = 9,725.66

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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.