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Finding the Fourth Proportional to 13,695.66, 20,525.58 and 7,026.53

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Solution

The fourth proportional to 13,695.66, 20,525.58 and 7,026.53 is: 10,530.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,695.66 : 20,525.58 = 7,026.53 : x
  2. Step 2: Convert to fraction form
    13,695.66/20,525.58 = 7,026.53/x
  3. Step 3: Cross multiply
    13,695.66x = 20,525.58 × 7,026.53
  4. Step 4: Simplify right side
    13,695.66x = 144,223,501.01
  5. Step 5: Solve for x
    x = 144,223,501.01/13,695.66
  6. Step 6: Final answer
    x = 10,530.60

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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.