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Finding the Fourth Proportional to 15,762.60, 21,765.08 and 10,737.36

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Solution

The fourth proportional to 15,762.60, 21,765.08 and 10,737.36 is: 14,826.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,762.60 : 21,765.08 = 10,737.36 : x
  2. Step 2: Convert to fraction form
    15,762.60/21,765.08 = 10,737.36/x
  3. Step 3: Cross multiply
    15,762.60x = 21,765.08 × 10,737.36
  4. Step 4: Simplify right side
    15,762.60x = 233,699,499.39
  5. Step 5: Solve for x
    x = 233,699,499.39/15,762.60
  6. Step 6: Final answer
    x = 14,826.20

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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.