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Finding the Fourth Proportional to 21,492.16, 32,224.95 and 7,448.92

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Solution

The fourth proportional to 21,492.16, 32,224.95 and 7,448.92 is: 11,168.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,492.16 : 32,224.95 = 7,448.92 : x
  2. Step 2: Convert to fraction form
    21,492.16/32,224.95 = 7,448.92/x
  3. Step 3: Cross multiply
    21,492.16x = 32,224.95 × 7,448.92
  4. Step 4: Simplify right side
    21,492.16x = 240,041,074.55
  5. Step 5: Solve for x
    x = 240,041,074.55/21,492.16
  6. Step 6: Final answer
    x = 11,168.77

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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.