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Finding the Fourth Proportional to 10,875.66, 15,015.63 and 8,353.26

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Solution

The fourth proportional to 10,875.66, 15,015.63 and 8,353.26 is: 11,533.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,875.66 : 15,015.63 = 8,353.26 : x
  2. Step 2: Convert to fraction form
    10,875.66/15,015.63 = 8,353.26/x
  3. Step 3: Cross multiply
    10,875.66x = 15,015.63 × 8,353.26
  4. Step 4: Simplify right side
    10,875.66x = 125,429,461.45
  5. Step 5: Solve for x
    x = 125,429,461.45/10,875.66
  6. Step 6: Final answer
    x = 11,533.04

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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.