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Finding the Fourth Proportional to 21,807.66, 32,711.52 and 6,225.28

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Solution

The fourth proportional to 21,807.66, 32,711.52 and 6,225.28 is: 9,337.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,807.66 : 32,711.52 = 6,225.28 : x
  2. Step 2: Convert to fraction form
    21,807.66/32,711.52 = 6,225.28/x
  3. Step 3: Cross multiply
    21,807.66x = 32,711.52 × 6,225.28
  4. Step 4: Simplify right side
    21,807.66x = 203,638,371.23
  5. Step 5: Solve for x
    x = 203,638,371.23/21,807.66
  6. Step 6: Final answer
    x = 9,337.93

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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.