Home / 19,352.98-28,868.81-18,705.12

Finding the Fourth Proportional to 19,352.98, 28,868.81 and 18,705.12

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Solution

The fourth proportional to 19,352.98, 28,868.81 and 18,705.12 is: 27,902.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,352.98 : 28,868.81 = 18,705.12 : x
  2. Step 2: Convert to fraction form
    19,352.98/28,868.81 = 18,705.12/x
  3. Step 3: Cross multiply
    19,352.98x = 28,868.81 × 18,705.12
  4. Step 4: Simplify right side
    19,352.98x = 539,994,555.31
  5. Step 5: Solve for x
    x = 539,994,555.31/19,352.98
  6. Step 6: Final answer
    x = 27,902.40

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Half scale
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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.