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Finding the Fourth Proportional to 14,576.61, 21,751.20 and 13,005.82

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Solution

The fourth proportional to 14,576.61, 21,751.20 and 13,005.82 is: 19,407.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,576.61 : 21,751.20 = 13,005.82 : x
  2. Step 2: Convert to fraction form
    14,576.61/21,751.20 = 13,005.82/x
  3. Step 3: Cross multiply
    14,576.61x = 21,751.20 × 13,005.82
  4. Step 4: Simplify right side
    14,576.61x = 282,892,041.95
  5. Step 5: Solve for x
    x = 282,892,041.95/14,576.61
  6. Step 6: Final answer
    x = 19,407.26

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.