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Finding the Fourth Proportional to 21,411.10, 32,116.65 and 21,411.10

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Solution

The fourth proportional to 21,411.10, 32,116.65 and 21,411.10 is: 32,116.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,411.10 : 32,116.65 = 21,411.10 : x
  2. Step 2: Convert to fraction form
    21,411.10/32,116.65 = 21,411.10/x
  3. Step 3: Cross multiply
    21,411.10x = 32,116.65 × 21,411.10
  4. Step 4: Simplify right side
    21,411.10x = 687,652,804.82
  5. Step 5: Solve for x
    x = 687,652,804.82/21,411.10
  6. Step 6: Final answer
    x = 32,116.65

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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.