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Finding the Fourth Proportional to 61,572.81, 85,026.47 and 46,439.58

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Solution

The fourth proportional to 61,572.81, 85,026.47 and 46,439.58 is: 64,128.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,572.81 : 85,026.47 = 46,439.58 : x
  2. Step 2: Convert to fraction form
    61,572.81/85,026.47 = 46,439.58/x
  3. Step 3: Cross multiply
    61,572.81x = 85,026.47 × 46,439.58
  4. Step 4: Simplify right side
    61,572.81x = 3,948,593,323.48
  5. Step 5: Solve for x
    x = 3,948,593,323.48/61,572.81
  6. Step 6: Final answer
    x = 64,128.85

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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.