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Finding the Fourth Proportional to 21,699.84, 32,552.16 and 6,903.57

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Solution

The fourth proportional to 21,699.84, 32,552.16 and 6,903.57 is: 10,356.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,699.84 : 32,552.16 = 6,903.57 : x
  2. Step 2: Convert to fraction form
    21,699.84/32,552.16 = 6,903.57/x
  3. Step 3: Cross multiply
    21,699.84x = 32,552.16 × 6,903.57
  4. Step 4: Simplify right side
    21,699.84x = 224,726,115.21
  5. Step 5: Solve for x
    x = 224,726,115.21/21,699.84
  6. Step 6: Final answer
    x = 10,356.12

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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.