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Finding the Fourth Proportional to 18,857.64, 26,016.04 and 10,898.40

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Solution

The fourth proportional to 18,857.64, 26,016.04 and 10,898.40 is: 15,035.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,857.64 : 26,016.04 = 10,898.40 : x
  2. Step 2: Convert to fraction form
    18,857.64/26,016.04 = 10,898.40/x
  3. Step 3: Cross multiply
    18,857.64x = 26,016.04 × 10,898.40
  4. Step 4: Simplify right side
    18,857.64x = 283,533,210.34
  5. Step 5: Solve for x
    x = 283,533,210.34/18,857.64
  6. Step 6: Final answer
    x = 15,035.46

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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.