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Finding the Fourth Proportional to 62,368.48, 86,140.26 and 45,448.40

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Solution

The fourth proportional to 62,368.48, 86,140.26 and 45,448.40 is: 62,771.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,368.48 : 86,140.26 = 45,448.40 : x
  2. Step 2: Convert to fraction form
    62,368.48/86,140.26 = 45,448.40/x
  3. Step 3: Cross multiply
    62,368.48x = 86,140.26 × 45,448.40
  4. Step 4: Simplify right side
    62,368.48x = 3,914,936,992.58
  5. Step 5: Solve for x
    x = 3,914,936,992.58/62,368.48
  6. Step 6: Final answer
    x = 62,771.08

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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.