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Finding the Fourth Proportional to 17,557.65, 26,348.72 and 7,699.74

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Solution

The fourth proportional to 17,557.65, 26,348.72 and 7,699.74 is: 11,554.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,557.65 : 26,348.72 = 7,699.74 : x
  2. Step 2: Convert to fraction form
    17,557.65/26,348.72 = 7,699.74/x
  3. Step 3: Cross multiply
    17,557.65x = 26,348.72 × 7,699.74
  4. Step 4: Simplify right side
    17,557.65x = 202,878,254.83
  5. Step 5: Solve for x
    x = 202,878,254.83/17,557.65
  6. Step 6: Final answer
    x = 11,554.98

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.