Home / 19,215.06-28,827.04-7,528.38

Finding the Fourth Proportional to 19,215.06, 28,827.04 and 7,528.38

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Solution

The fourth proportional to 19,215.06, 28,827.04 and 7,528.38 is: 11,294.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,215.06 : 28,827.04 = 7,528.38 : x
  2. Step 2: Convert to fraction form
    19,215.06/28,827.04 = 7,528.38/x
  3. Step 3: Cross multiply
    19,215.06x = 28,827.04 × 7,528.38
  4. Step 4: Simplify right side
    19,215.06x = 217,020,911.40
  5. Step 5: Solve for x
    x = 217,020,911.40/19,215.06
  6. Step 6: Final answer
    x = 11,294.31

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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.