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Finding the Fourth Proportional to 54,354.87, 75,012.99 and 30,482.91

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Solution

The fourth proportional to 54,354.87, 75,012.99 and 30,482.91 is: 42,068.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,354.87 : 75,012.99 = 30,482.91 : x
  2. Step 2: Convert to fraction form
    54,354.87/75,012.99 = 30,482.91/x
  3. Step 3: Cross multiply
    54,354.87x = 75,012.99 × 30,482.91
  4. Step 4: Simplify right side
    54,354.87x = 2,286,614,223.00
  5. Step 5: Solve for x
    x = 2,286,614,223.00/54,354.87
  6. Step 6: Final answer
    x = 42,068.25

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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.