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Finding the Fourth Proportional to 15,658.01, 21,606.65 and 8,943.62

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Solution

The fourth proportional to 15,658.01, 21,606.65 and 8,943.62 is: 12,341.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,658.01 : 21,606.65 = 8,943.62 : x
  2. Step 2: Convert to fraction form
    15,658.01/21,606.65 = 8,943.62/x
  3. Step 3: Cross multiply
    15,658.01x = 21,606.65 × 8,943.62
  4. Step 4: Simplify right side
    15,658.01x = 193,241,547.86
  5. Step 5: Solve for x
    x = 193,241,547.86/15,658.01
  6. Step 6: Final answer
    x = 12,341.39

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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.