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Finding the Fourth Proportional to 15,574.86, 21,492.44 and 8,501.12

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Solution

The fourth proportional to 15,574.86, 21,492.44 and 8,501.12 is: 11,731.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,574.86 : 21,492.44 = 8,501.12 : x
  2. Step 2: Convert to fraction form
    15,574.86/21,492.44 = 8,501.12/x
  3. Step 3: Cross multiply
    15,574.86x = 21,492.44 × 8,501.12
  4. Step 4: Simplify right side
    15,574.86x = 182,709,811.53
  5. Step 5: Solve for x
    x = 182,709,811.53/15,574.86
  6. Step 6: Final answer
    x = 11,731.07

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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.