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Finding the Fourth Proportional to 49,482.63, 74,223.95 and 40,690.89

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Solution

The fourth proportional to 49,482.63, 74,223.95 and 40,690.89 is: 61,036.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,482.63 : 74,223.95 = 40,690.89 : x
  2. Step 2: Convert to fraction form
    49,482.63/74,223.95 = 40,690.89/x
  3. Step 3: Cross multiply
    49,482.63x = 74,223.95 × 40,690.89
  4. Step 4: Simplify right side
    49,482.63x = 3,020,238,381.36
  5. Step 5: Solve for x
    x = 3,020,238,381.36/49,482.63
  6. Step 6: Final answer
    x = 61,036.34

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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.