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Finding the Fourth Proportional to 18,916.51, 26,104.53 and 10,533.01

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Solution

The fourth proportional to 18,916.51, 26,104.53 and 10,533.01 is: 14,535.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,916.51 : 26,104.53 = 10,533.01 : x
  2. Step 2: Convert to fraction form
    18,916.51/26,104.53 = 10,533.01/x
  3. Step 3: Cross multiply
    18,916.51x = 26,104.53 × 10,533.01
  4. Step 4: Simplify right side
    18,916.51x = 274,959,275.54
  5. Step 5: Solve for x
    x = 274,959,275.54/18,916.51
  6. Step 6: Final answer
    x = 14,535.41

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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.