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Finding the Fourth Proportional to 14,750.87, 20,356.43 and 8,036.51

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Solution

The fourth proportional to 14,750.87, 20,356.43 and 8,036.51 is: 11,090.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,750.87 : 20,356.43 = 8,036.51 : x
  2. Step 2: Convert to fraction form
    14,750.87/20,356.43 = 8,036.51/x
  3. Step 3: Cross multiply
    14,750.87x = 20,356.43 × 8,036.51
  4. Step 4: Simplify right side
    14,750.87x = 163,594,511.29
  5. Step 5: Solve for x
    x = 163,594,511.29/14,750.87
  6. Step 6: Final answer
    x = 11,090.50

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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.