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Finding the Fourth Proportional to 10,684.05, 14,750.95 and 9,563.08

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Solution

The fourth proportional to 10,684.05, 14,750.95 and 9,563.08 is: 13,203.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,684.05 : 14,750.95 = 9,563.08 : x
  2. Step 2: Convert to fraction form
    10,684.05/14,750.95 = 9,563.08/x
  3. Step 3: Cross multiply
    10,684.05x = 14,750.95 × 9,563.08
  4. Step 4: Simplify right side
    10,684.05x = 141,064,417.26
  5. Step 5: Solve for x
    x = 141,064,417.26/10,684.05
  6. Step 6: Final answer
    x = 13,203.28

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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.