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Finding the Fourth Proportional to 15,256.80, 22,886.80 and 4,866.16

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Solution

The fourth proportional to 15,256.80, 22,886.80 and 4,866.16 is: 7,299.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,256.80 : 22,886.80 = 4,866.16 : x
  2. Step 2: Convert to fraction form
    15,256.80/22,886.80 = 4,866.16/x
  3. Step 3: Cross multiply
    15,256.80x = 22,886.80 × 4,866.16
  4. Step 4: Simplify right side
    15,256.80x = 111,370,830.69
  5. Step 5: Solve for x
    x = 111,370,830.69/15,256.80
  6. Step 6: Final answer
    x = 7,299.75

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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.