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Finding the Fourth Proportional to 74,482.79, 111,574.59 and 34,445.65

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Solution

The fourth proportional to 74,482.79, 111,574.59 and 34,445.65 is: 51,599.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,482.79 : 111,574.59 = 34,445.65 : x
  2. Step 2: Convert to fraction form
    74,482.79/111,574.59 = 34,445.65/x
  3. Step 3: Cross multiply
    74,482.79x = 111,574.59 × 34,445.65
  4. Step 4: Simplify right side
    74,482.79x = 3,843,259,276.03
  5. Step 5: Solve for x
    x = 3,843,259,276.03/74,482.79
  6. Step 6: Final answer
    x = 51,599.29

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.