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Finding the Fourth Proportional to 18,368.76, 27,509.37 and 10,036.32

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Solution

The fourth proportional to 18,368.76, 27,509.37 and 10,036.32 is: 15,030.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,368.76 : 27,509.37 = 10,036.32 : x
  2. Step 2: Convert to fraction form
    18,368.76/27,509.37 = 10,036.32/x
  3. Step 3: Cross multiply
    18,368.76x = 27,509.37 × 10,036.32
  4. Step 4: Simplify right side
    18,368.76x = 276,092,840.32
  5. Step 5: Solve for x
    x = 276,092,840.32/18,368.76
  6. Step 6: Final answer
    x = 15,030.56

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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.