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Finding the Fourth Proportional to 58,572.76, 80,830.95 and 31,715.83

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Solution

The fourth proportional to 58,572.76, 80,830.95 and 31,715.83 is: 43,768.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,572.76 : 80,830.95 = 31,715.83 : x
  2. Step 2: Convert to fraction form
    58,572.76/80,830.95 = 31,715.83/x
  3. Step 3: Cross multiply
    58,572.76x = 80,830.95 × 31,715.83
  4. Step 4: Simplify right side
    58,572.76x = 2,563,620,557.51
  5. Step 5: Solve for x
    x = 2,563,620,557.51/58,572.76
  6. Step 6: Final answer
    x = 43,768.14

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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.