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Finding the Fourth Proportional to 61,465.34, 84,643.70 and 53,395.32

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Solution

The fourth proportional to 61,465.34, 84,643.70 and 53,395.32 is: 73,530.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,465.34 : 84,643.70 = 53,395.32 : x
  2. Step 2: Convert to fraction form
    61,465.34/84,643.70 = 53,395.32/x
  3. Step 3: Cross multiply
    61,465.34x = 84,643.70 × 53,395.32
  4. Step 4: Simplify right side
    61,465.34x = 4,519,577,447.48
  5. Step 5: Solve for x
    x = 4,519,577,447.48/61,465.34
  6. Step 6: Final answer
    x = 73,530.50

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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.