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Finding the Fourth Proportional to 46,447, 64,108.79 and 28,310.02

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Solution

The fourth proportional to 46,447, 64,108.79 and 28,310.02 is: 39,075.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    46,447 : 64,108.79 = 28,310.02 : x
  2. Step 2: Convert to fraction form
    46,447/64,108.79 = 28,310.02/x
  3. Step 3: Cross multiply
    46,447x = 64,108.79 × 28,310.02
  4. Step 4: Simplify right side
    46,447x = 1,814,921,127.08
  5. Step 5: Solve for x
    x = 1,814,921,127.08/46,447
  6. Step 6: Final answer
    x = 39,075.10

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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.