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Finding the Fourth Proportional to 19,313, 26,654.48 and 10,929.52

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Solution

The fourth proportional to 19,313, 26,654.48 and 10,929.52 is: 15,084.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,313 : 26,654.48 = 10,929.52 : x
  2. Step 2: Convert to fraction form
    19,313/26,654.48 = 10,929.52/x
  3. Step 3: Cross multiply
    19,313x = 26,654.48 × 10,929.52
  4. Step 4: Simplify right side
    19,313x = 291,320,672.25
  5. Step 5: Solve for x
    x = 291,320,672.25/19,313
  6. Step 6: Final answer
    x = 15,084.18

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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.