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Finding the Fourth Proportional to 20,552.92, 28,363 and 11,602.32

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Solution

The fourth proportional to 20,552.92, 28,363 and 11,602.32 is: 16,011.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,552.92 : 28,363 = 11,602.32 : x
  2. Step 2: Convert to fraction form
    20,552.92/28,363 = 11,602.32/x
  3. Step 3: Cross multiply
    20,552.92x = 28,363 × 11,602.32
  4. Step 4: Simplify right side
    20,552.92x = 329,076,602.16
  5. Step 5: Solve for x
    x = 329,076,602.16/20,552.92
  6. Step 6: Final answer
    x = 16,011.18

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.