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Finding the Fourth Proportional to 8,751.48, 13,075.98 and 8,445.24

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Solution

The fourth proportional to 8,751.48, 13,075.98 and 8,445.24 is: 12,618.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,751.48 : 13,075.98 = 8,445.24 : x
  2. Step 2: Convert to fraction form
    8,751.48/13,075.98 = 8,445.24/x
  3. Step 3: Cross multiply
    8,751.48x = 13,075.98 × 8,445.24
  4. Step 4: Simplify right side
    8,751.48x = 110,429,789.34
  5. Step 5: Solve for x
    x = 110,429,789.34/8,751.48
  6. Step 6: Final answer
    x = 12,618.41

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.