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Finding the Fourth Proportional to 55,995.90, 77,268.74 and 34,482.20

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Solution

The fourth proportional to 55,995.90, 77,268.74 and 34,482.20 is: 47,581.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,995.90 : 77,268.74 = 34,482.20 : x
  2. Step 2: Convert to fraction form
    55,995.90/77,268.74 = 34,482.20/x
  3. Step 3: Cross multiply
    55,995.90x = 77,268.74 × 34,482.20
  4. Step 4: Simplify right side
    55,995.90x = 2,664,396,167.19
  5. Step 5: Solve for x
    x = 2,664,396,167.19/55,995.90
  6. Step 6: Final answer
    x = 47,581.99

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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.