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Finding the Fourth Proportional to 25,615.38, 35,349.50 and 14,437.38

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Solution

The fourth proportional to 25,615.38, 35,349.50 and 14,437.38 is: 19,923.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,615.38 : 35,349.50 = 14,437.38 : x
  2. Step 2: Convert to fraction form
    25,615.38/35,349.50 = 14,437.38/x
  3. Step 3: Cross multiply
    25,615.38x = 35,349.50 × 14,437.38
  4. Step 4: Simplify right side
    25,615.38x = 510,354,164.31
  5. Step 5: Solve for x
    x = 510,354,164.31/25,615.38
  6. Step 6: Final answer
    x = 19,923.74

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Half scale
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Double scale
Find fourth proportional to 25,616.38, 35,350.88 and 14,438.38
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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.