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Finding the Fourth Proportional to 12,235.50, 16,886.43 and 7,267.50

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Solution

The fourth proportional to 12,235.50, 16,886.43 and 7,267.50 is: 10,030.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,235.50 : 16,886.43 = 7,267.50 : x
  2. Step 2: Convert to fraction form
    12,235.50/16,886.43 = 7,267.50/x
  3. Step 3: Cross multiply
    12,235.50x = 16,886.43 × 7,267.50
  4. Step 4: Simplify right side
    12,235.50x = 122,722,130.03
  5. Step 5: Solve for x
    x = 122,722,130.03/12,235.50
  6. Step 6: Final answer
    x = 10,030.01

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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.