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Finding the Fourth Proportional to 19,313.56, 26,656.05 and 10,930.06

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Solution

The fourth proportional to 19,313.56, 26,656.05 and 10,930.06 is: 15,085.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,313.56 : 26,656.05 = 10,930.06 : x
  2. Step 2: Convert to fraction form
    19,313.56/26,656.05 = 10,930.06/x
  3. Step 3: Cross multiply
    19,313.56x = 26,656.05 × 10,930.06
  4. Step 4: Simplify right side
    19,313.56x = 291,352,225.86
  5. Step 5: Solve for x
    x = 291,352,225.86/19,313.56
  6. Step 6: Final answer
    x = 15,085.37

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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.