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Finding the Fourth Proportional to 15,053.72, 20,777.58 and 10,018.16

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Solution

The fourth proportional to 15,053.72, 20,777.58 and 10,018.16 is: 13,827.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,053.72 : 20,777.58 = 10,018.16 : x
  2. Step 2: Convert to fraction form
    15,053.72/20,777.58 = 10,018.16/x
  3. Step 3: Cross multiply
    15,053.72x = 20,777.58 × 10,018.16
  4. Step 4: Simplify right side
    15,053.72x = 208,153,120.85
  5. Step 5: Solve for x
    x = 208,153,120.85/15,053.72
  6. Step 6: Final answer
    x = 13,827.35

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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.