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Finding the Fourth Proportional to 15,566.96, 21,482.47 and 8,493.53

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Solution

The fourth proportional to 15,566.96, 21,482.47 and 8,493.53 is: 11,721.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,566.96 : 21,482.47 = 8,493.53 : x
  2. Step 2: Convert to fraction form
    15,566.96/21,482.47 = 8,493.53/x
  3. Step 3: Cross multiply
    15,566.96x = 21,482.47 × 8,493.53
  4. Step 4: Simplify right side
    15,566.96x = 182,461,874.77
  5. Step 5: Solve for x
    x = 182,461,874.77/15,566.96
  6. Step 6: Final answer
    x = 11,721.10

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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.