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Finding the Fourth Proportional to 8,907.58, 13,335.45 and 8,570.62

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Solution

The fourth proportional to 8,907.58, 13,335.45 and 8,570.62 is: 12,830.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,907.58 : 13,335.45 = 8,570.62 : x
  2. Step 2: Convert to fraction form
    8,907.58/13,335.45 = 8,570.62/x
  3. Step 3: Cross multiply
    8,907.58x = 13,335.45 × 8,570.62
  4. Step 4: Simplify right side
    8,907.58x = 114,293,074.48
  5. Step 5: Solve for x
    x = 114,293,074.48/8,907.58
  6. Step 6: Final answer
    x = 12,830.99

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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.