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Finding the Fourth Proportional to 61,009.41, 91,164.45 and 46,503.48

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Solution

The fourth proportional to 61,009.41, 91,164.45 and 46,503.48 is: 69,488.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,009.41 : 91,164.45 = 46,503.48 : x
  2. Step 2: Convert to fraction form
    61,009.41/91,164.45 = 46,503.48/x
  3. Step 3: Cross multiply
    61,009.41x = 91,164.45 × 46,503.48
  4. Step 4: Simplify right side
    61,009.41x = 4,239,464,177.29
  5. Step 5: Solve for x
    x = 4,239,464,177.29/61,009.41
  6. Step 6: Final answer
    x = 69,488.69

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.