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Finding the Fourth Proportional to 56,603.84, 84,905.76 and 21,535.28

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Solution

The fourth proportional to 56,603.84, 84,905.76 and 21,535.28 is: 32,302.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,603.84 : 84,905.76 = 21,535.28 : x
  2. Step 2: Convert to fraction form
    56,603.84/84,905.76 = 21,535.28/x
  3. Step 3: Cross multiply
    56,603.84x = 84,905.76 × 21,535.28
  4. Step 4: Simplify right side
    56,603.84x = 1,828,469,315.21
  5. Step 5: Solve for x
    x = 1,828,469,315.21/56,603.84
  6. Step 6: Final answer
    x = 32,302.92

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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.