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Finding the Fourth Proportional to 54,482.76, 75,172.86 and 31,808.88

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Solution

The fourth proportional to 54,482.76, 75,172.86 and 31,808.88 is: 43,888.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,482.76 : 75,172.86 = 31,808.88 : x
  2. Step 2: Convert to fraction form
    54,482.76/75,172.86 = 31,808.88/x
  3. Step 3: Cross multiply
    54,482.76x = 75,172.86 × 31,808.88
  4. Step 4: Simplify right side
    54,482.76x = 2,391,164,483.00
  5. Step 5: Solve for x
    x = 2,391,164,483.00/54,482.76
  6. Step 6: Final answer
    x = 43,888.46

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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.