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Finding the Fourth Proportional to 58,369.84, 80,875.71 and 57,108.66

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Solution

The fourth proportional to 58,369.84, 80,875.71 and 57,108.66 is: 79,128.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,369.84 : 80,875.71 = 57,108.66 : x
  2. Step 2: Convert to fraction form
    58,369.84/80,875.71 = 57,108.66/x
  3. Step 3: Cross multiply
    58,369.84x = 80,875.71 × 57,108.66
  4. Step 4: Simplify right side
    58,369.84x = 4,618,703,424.65
  5. Step 5: Solve for x
    x = 4,618,703,424.65/58,369.84
  6. Step 6: Final answer
    x = 79,128.25

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.