Home / 31,880.13-47,809.84-10,528.04

Finding the Fourth Proportional to 31,880.13, 47,809.84 and 10,528.04

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Solution

The fourth proportional to 31,880.13, 47,809.84 and 10,528.04 is: 15,788.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,880.13 : 47,809.84 = 10,528.04 : x
  2. Step 2: Convert to fraction form
    31,880.13/47,809.84 = 10,528.04/x
  3. Step 3: Cross multiply
    31,880.13x = 47,809.84 × 10,528.04
  4. Step 4: Simplify right side
    31,880.13x = 503,343,907.91
  5. Step 5: Solve for x
    x = 503,343,907.91/31,880.13
  6. Step 6: Final answer
    x = 15,788.64

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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.