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Finding the Fourth Proportional to 46,987.90, 64,844.13 and 25,765.90

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Solution

The fourth proportional to 46,987.90, 64,844.13 and 25,765.90 is: 35,557.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    46,987.90 : 64,844.13 = 25,765.90 : x
  2. Step 2: Convert to fraction form
    46,987.90/64,844.13 = 25,765.90/x
  3. Step 3: Cross multiply
    46,987.90x = 64,844.13 × 25,765.90
  4. Step 4: Simplify right side
    46,987.90x = 1,670,767,369.17
  5. Step 5: Solve for x
    x = 1,670,767,369.17/46,987.90
  6. Step 6: Final answer
    x = 35,557.40

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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.