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Finding the Fourth Proportional to 58,008.80, 80,038.80 and 34,126.40

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Solution

The fourth proportional to 58,008.80, 80,038.80 and 34,126.40 is: 47,086.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,008.80 : 80,038.80 = 34,126.40 : x
  2. Step 2: Convert to fraction form
    58,008.80/80,038.80 = 34,126.40/x
  3. Step 3: Cross multiply
    58,008.80x = 80,038.80 × 34,126.40
  4. Step 4: Simplify right side
    58,008.80x = 2,731,436,104.32
  5. Step 5: Solve for x
    x = 2,731,436,104.32/58,008.80
  6. Step 6: Final answer
    x = 47,086.58

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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.