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Finding the Fourth Proportional to 25,810.63, 38,715.94 and 7,342.63

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Solution

The fourth proportional to 25,810.63, 38,715.94 and 7,342.63 is: 11,013.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,810.63 : 38,715.94 = 7,342.63 : x
  2. Step 2: Convert to fraction form
    25,810.63/38,715.94 = 7,342.63/x
  3. Step 3: Cross multiply
    25,810.63x = 38,715.94 × 7,342.63
  4. Step 4: Simplify right side
    25,810.63x = 284,276,822.52
  5. Step 5: Solve for x
    x = 284,276,822.52/25,810.63
  6. Step 6: Final answer
    x = 11,013.94

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.