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Finding the Fourth Proportional to 34,507.86, 51,772.72 and 12,320.74

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Solution

The fourth proportional to 34,507.86, 51,772.72 and 12,320.74 is: 18,485.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,507.86 : 51,772.72 = 12,320.74 : x
  2. Step 2: Convert to fraction form
    34,507.86/51,772.72 = 12,320.74/x
  3. Step 3: Cross multiply
    34,507.86x = 51,772.72 × 12,320.74
  4. Step 4: Simplify right side
    34,507.86x = 637,878,222.21
  5. Step 5: Solve for x
    x = 637,878,222.21/34,507.86
  6. Step 6: Final answer
    x = 18,485.01

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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.