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Finding the Fourth Proportional to 59,339.52, 89,009.64 and 19,899.72

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Solution

The fourth proportional to 59,339.52, 89,009.64 and 19,899.72 is: 29,849.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    59,339.52 : 89,009.64 = 19,899.72 : x
  2. Step 2: Convert to fraction form
    59,339.52/89,009.64 = 19,899.72/x
  3. Step 3: Cross multiply
    59,339.52x = 89,009.64 × 19,899.72
  4. Step 4: Simplify right side
    59,339.52x = 1,771,266,913.30
  5. Step 5: Solve for x
    x = 1,771,266,913.30/59,339.52
  6. Step 6: Final answer
    x = 29,849.70

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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.