Home / 25,381.98-35,029.13-14,772.20

Finding the Fourth Proportional to 25,381.98, 35,029.13 and 14,772.20

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Solution

The fourth proportional to 25,381.98, 35,029.13 and 14,772.20 is: 20,386.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,381.98 : 35,029.13 = 14,772.20 : x
  2. Step 2: Convert to fraction form
    25,381.98/35,029.13 = 14,772.20/x
  3. Step 3: Cross multiply
    25,381.98x = 35,029.13 × 14,772.20
  4. Step 4: Simplify right side
    25,381.98x = 517,457,065.18
  5. Step 5: Solve for x
    x = 517,457,065.18/25,381.98
  6. Step 6: Final answer
    x = 20,386.79

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Half scale
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Double scale
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Similar ratio
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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.