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Finding the Fourth Proportional to 21,562.01, 32,332.08 and 9,865.21

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Solution

The fourth proportional to 21,562.01, 32,332.08 and 9,865.21 is: 14,792.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,562.01 : 32,332.08 = 9,865.21 : x
  2. Step 2: Convert to fraction form
    21,562.01/32,332.08 = 9,865.21/x
  3. Step 3: Cross multiply
    21,562.01x = 32,332.08 × 9,865.21
  4. Step 4: Simplify right side
    21,562.01x = 318,962,547.95
  5. Step 5: Solve for x
    x = 318,962,547.95/21,562.01
  6. Step 6: Final answer
    x = 14,792.80

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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.