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Finding the Fourth Proportional to 58,558.50, 80,810.71 and 31,700.99

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Solution

The fourth proportional to 58,558.50, 80,810.71 and 31,700.99 is: 43,747.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,558.50 : 80,810.71 = 31,700.99 : x
  2. Step 2: Convert to fraction form
    58,558.50/80,810.71 = 31,700.99/x
  3. Step 3: Cross multiply
    58,558.50x = 80,810.71 × 31,700.99
  4. Step 4: Simplify right side
    58,558.50x = 2,561,779,509.60
  5. Step 5: Solve for x
    x = 2,561,779,509.60/58,558.50
  6. Step 6: Final answer
    x = 43,747.36

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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.