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Finding the Fourth Proportional to 46,036.40, 69,058.08 and 12,756.08

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Solution

The fourth proportional to 46,036.40, 69,058.08 and 12,756.08 is: 19,135.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    46,036.40 : 69,058.08 = 12,756.08 : x
  2. Step 2: Convert to fraction form
    46,036.40/69,058.08 = 12,756.08/x
  3. Step 3: Cross multiply
    46,036.40x = 69,058.08 × 12,756.08
  4. Step 4: Simplify right side
    46,036.40x = 880,910,393.13
  5. Step 5: Solve for x
    x = 880,910,393.13/46,036.40
  6. Step 6: Final answer
    x = 19,135.08

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.