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Finding the Fourth Proportional to 58,007.70, 81,013.95 and 58,007.70

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Solution

The fourth proportional to 58,007.70, 81,013.95 and 58,007.70 is: 81,013.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,007.70 : 81,013.95 = 58,007.70 : x
  2. Step 2: Convert to fraction form
    58,007.70/81,013.95 = 58,007.70/x
  3. Step 3: Cross multiply
    58,007.70x = 81,013.95 × 58,007.70
  4. Step 4: Simplify right side
    58,007.70x = 4,699,432,907.42
  5. Step 5: Solve for x
    x = 4,699,432,907.42/58,007.70
  6. Step 6: Final answer
    x = 81,013.95

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.