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Finding the Fourth Proportional to 14,038.13, 19,372.76 and 7,750.64

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Solution

The fourth proportional to 14,038.13, 19,372.76 and 7,750.64 is: 10,695.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,038.13 : 19,372.76 = 7,750.64 : x
  2. Step 2: Convert to fraction form
    14,038.13/19,372.76 = 7,750.64/x
  3. Step 3: Cross multiply
    14,038.13x = 19,372.76 × 7,750.64
  4. Step 4: Simplify right side
    14,038.13x = 150,151,152.95
  5. Step 5: Solve for x
    x = 150,151,152.95/14,038.13
  6. Step 6: Final answer
    x = 10,695.95

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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.