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Finding the Fourth Proportional to 54,459.15, 75,144.80 and 34,038.80

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Solution

The fourth proportional to 54,459.15, 75,144.80 and 34,038.80 is: 46,968.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,459.15 : 75,144.80 = 34,038.80 : x
  2. Step 2: Convert to fraction form
    54,459.15/75,144.80 = 34,038.80/x
  3. Step 3: Cross multiply
    54,459.15x = 75,144.80 × 34,038.80
  4. Step 4: Simplify right side
    54,459.15x = 2,557,838,272.32
  5. Step 5: Solve for x
    x = 2,557,838,272.32/54,459.15
  6. Step 6: Final answer
    x = 46,968.02

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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.