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Finding the Fourth Proportional to 66,018.15, 99,038.16 and 32,739.30

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Solution

The fourth proportional to 66,018.15, 99,038.16 and 32,739.30 is: 49,114.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,018.15 : 99,038.16 = 32,739.30 : x
  2. Step 2: Convert to fraction form
    66,018.15/99,038.16 = 32,739.30/x
  3. Step 3: Cross multiply
    66,018.15x = 99,038.16 × 32,739.30
  4. Step 4: Simplify right side
    66,018.15x = 3,242,440,031.69
  5. Step 5: Solve for x
    x = 3,242,440,031.69/66,018.15
  6. Step 6: Final answer
    x = 49,114.37

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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.