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Finding the Fourth Proportional to 11,642.67, 16,070.40 and 11,047.46

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Solution

The fourth proportional to 11,642.67, 16,070.40 and 11,047.46 is: 15,248.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,642.67 : 16,070.40 = 11,047.46 : x
  2. Step 2: Convert to fraction form
    11,642.67/16,070.40 = 11,047.46/x
  3. Step 3: Cross multiply
    11,642.67x = 16,070.40 × 11,047.46
  4. Step 4: Simplify right side
    11,642.67x = 177,537,020.83
  5. Step 5: Solve for x
    x = 177,537,020.83/11,642.67
  6. Step 6: Final answer
    x = 15,248.82

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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.