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Finding the Fourth Proportional to 8,859.66, 12,225.51 and 6,503.10

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Solution

The fourth proportional to 8,859.66, 12,225.51 and 6,503.10 is: 8,973.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,859.66 : 12,225.51 = 6,503.10 : x
  2. Step 2: Convert to fraction form
    8,859.66/12,225.51 = 6,503.10/x
  3. Step 3: Cross multiply
    8,859.66x = 12,225.51 × 6,503.10
  4. Step 4: Simplify right side
    8,859.66x = 79,503,714.08
  5. Step 5: Solve for x
    x = 79,503,714.08/8,859.66
  6. Step 6: Final answer
    x = 8,973.68

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.