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Finding the Fourth Proportional to 18,923.19, 26,114.01 and 10,970.02

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Solution

The fourth proportional to 18,923.19, 26,114.01 and 10,970.02 is: 15,138.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,923.19 : 26,114.01 = 10,970.02 : x
  2. Step 2: Convert to fraction form
    18,923.19/26,114.01 = 10,970.02/x
  3. Step 3: Cross multiply
    18,923.19x = 26,114.01 × 10,970.02
  4. Step 4: Simplify right side
    18,923.19x = 286,471,157.13
  5. Step 5: Solve for x
    x = 286,471,157.13/18,923.19
  6. Step 6: Final answer
    x = 15,138.63

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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.