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Finding the Fourth Proportional to 25,963.81, 35,830.76 and 15,892.07

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Solution

The fourth proportional to 25,963.81, 35,830.76 and 15,892.07 is: 21,931.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,963.81 : 35,830.76 = 15,892.07 : x
  2. Step 2: Convert to fraction form
    25,963.81/35,830.76 = 15,892.07/x
  3. Step 3: Cross multiply
    25,963.81x = 35,830.76 × 15,892.07
  4. Step 4: Simplify right side
    25,963.81x = 569,424,687.46
  5. Step 5: Solve for x
    x = 569,424,687.46/25,963.81
  6. Step 6: Final answer
    x = 21,931.48

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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.