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Finding the Fourth Proportional to 58,957.39, 81,411.77 and 57,050.91

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Solution

The fourth proportional to 58,957.39, 81,411.77 and 57,050.91 is: 78,779.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,957.39 : 81,411.77 = 57,050.91 : x
  2. Step 2: Convert to fraction form
    58,957.39/81,411.77 = 57,050.91/x
  3. Step 3: Cross multiply
    58,957.39x = 81,411.77 × 57,050.91
  4. Step 4: Simplify right side
    58,957.39x = 4,644,616,082.45
  5. Step 5: Solve for x
    x = 4,644,616,082.45/58,957.39
  6. Step 6: Final answer
    x = 78,779.20

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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.